Who remembers that yellow dress she wore on Idol? Most BEAUTIFUL American Idol contestant ever!

David Foster is a national treasure and one of the world's best songwriters.

I had no idea David wrote this. Love this song!

I love these two. Beautiful couple with a soulful connection.

I really don't understand why she's not more widespread. She's so underrated. Lovely!!

Dang she can sing. And dang can he write songs. Their child is gonna be a musical genius.

Whitney had a voice of an angel. Katherine has the voice of a modern day angel. God bless for these talents and with David's musicality, we are lucky to live in these times. Thank you.

I love these two together,she has a beautiful voice!

I never knew that David Foster had written so many beautiful songs. I only knew the singer.

The way David Foster ( legend) looks at Kat ...is he is so proud of her fir being great at singing , having fun and just being herself ...I love their relationship xo The same with Kat , she is one proud woman to have won Fosters heart , Maggie’s him and now with a child ! I wish them both the best of everything 💜St- Elmos fire will always be my favourite x

One of the best songs ever. How many times I’ve belted this out (badly) alone in my car. Ha! Love you two.

Omg. The glass slipper fits . They are perfect for each other. Love this girl. So happy for them. 💜

Awesome performances by both of you. It's obvious you two are kindred spirits and make beautiful music together. Thank you for brightening this world when we need it most. ❤

He is so in love❤️ And looks so happy..

I’ve seen her since she began Still beautiful and I’m so glad she found Love❤️

I love how he looks at her. I really doubted their relationship, but you can really see they love each other and probably have a lot of fun!

To see 2 people in love and have respect for each other is so beautiful regardless of age it is very beautiful I want you 2 to sing an album together literally together and bring it on for 2021

Is she not the cutest thing?? Beauty, humor, and my God, the voice! And he's just a damn genius. Where is music without this man??

Wow. Nobody does Whitney like Whitney, but this is amazing!!!

It’s nice that they share music with each other. That’s what you feel down to your soul.

Their Love is So Deep, they are so Cute! They are truly Soulmates

I enjoy watching all of their videos. And the way Katharine is so playful towards David… just make my heart smile. You can tell she is inlove… they both are❤️

How can one watch this and not come away feeling better? Thank you for the gift 💝

Kathrine is so talented and with hubby doing some mentoring, she’s in good hands 🥰 I am 60 years young and studied just enough music at community college level in my 20’s, that I hold the likes of David Foster, Andrew Lloyd Webber, even the Burt Bacharach’s in the highest esteem ... Those who study music composition know math in music is your friend... Scales, Intervals, inversions, all happening in real time. These player/composers are my type of Einstein .. From SoCal, much respect...

Omg Katharine’s Idol performance of I Have Nothing was fantastic!! I remember my jaw hitting the floor watching it.

Beautiful! I got chills and I Love Whitney! Miss her! Good job! ❤️

David Foster is such an amazing producer and musician! I'm such a fan of his work, and I'm loving these karaoke performances. Their chemistry is amazing! I wish them a long and prosperous marriage.

The soul sees no age only feels the light of the soul . These two are the perfect example of uncondtional love and breaking down programmed thinking about relationships. The both of you inspire with your love.

This is truly phenomenal Kat and David!!! Awesome as always 💞👌💐

Wow! I really love them together. I love the passion they share for music. 💛

I remember that American Idol performance like it was yesterday! It is one of the very few moments I remember because it was such a stellar performance and David is such an iconic song writer which made the episode that much more special. I remember being angry at Simon when he commented about the performance. Katharine did the song justice and still sounds incredible! Whitney would be proud and it is obvious that David is!! Now it's time to listen again!

Saw them tonight in concert absolutely fabulous concert

I'm in love with this couple being together...I thought back when I cheered her on in A.I. that they were kindred spirits somehow drawn to one another & I have rooted for them ever since ESPECIALLY NOW ON MASKED SINGER!! THEY ARE A MATCH MADE IN HEAVEN!!🥰

What a talented couple who are in love!!.......thanks for sharing the love!! Best wishes from the uk.

What wonderful entertainment while we’re all staying in. Thanks!

Chills!!! Amazing! Love how you combed his hair with her fingers - so sweet!

Yes; please have an R&B night!! I've always said that she has a soulful voice!! Bring it Mr. & Mrs. Foster!! Love you!

She is so beautiful and sings incredible ! And he is an Amazing musician ! Great couple ! Greetings from Mexico City !

Extraordinary woman. Stunning and what a singer. World class!

Such an incredible voice

I love watching his face. 😌 pure love and admiration and amazement. Soulful !!!!! Thank you ❣️

Love you both! Thank you so much for this!

I see why he love her. She is full of life and beautiful.♥️

I completely stumbled on this live. Thank you so much for doing it. In this pandemic, I have my 75 year old mom with respiratory issues with me. I have been terrified at times because I know it will kill her if she catches this virus. For about 15 minutes, as I listened to your wonderful music, I temporarily forgot all this that is going on in our world. Keep sharing.

One of my favorite songs!

Katharine saw you recently on "I can see your voice". You're so beautiful, you have such a cute personality. Also, there no better songwriter than David Foster, such talent.

Stunning performance, Katherine. Thanks so much!

Beautiful. I was smiling all over watching you both! What a beautiful piece. Katherine, your voice linger.ijusst watched you on American idol on tv compilation, and search for your name. I knew it , I know you. That was2006,what a milestone. Thanks for thisKat and david. So much love both!

She's like a fine wine, better and better over time.

Yous two are amazing!🌟🌟 Entertainment galore, comedy, you're definitely broadway too. Such a great twosome, who could of guessed yous would've of ended up tying the knot. Actually it looks like to me that yous were destined for each other. Keep on loving each other cos yous have that real love magic power 🎇🎇 Thanks so much for sharing with rest of the luckless planet.

You two are great for each other. Who the hell cares about age. As long as there's love, cherish and happiness that's all that dang on matters. Haters are gonna hate. But love is gonna continue loving. You two keep doing your thing. Life goes on and it's short so you might as well have fun.

Both soooo talented! Makes me cry.

I am so happy KZfaq introduced me this singer (mind you I'm from Scandinavia) since I have the same voice range and it feels sooo good to be able to pick these songs for me repertoire as well. I was struggling as the daughter of a coloratura soprano for years but now coming in terms with my own dark and strong voice.. ^^

One of my all time favorite songs!!! Beautiful!!!

Always in love with your voice, Katherine. You sing like an angel 🧡 you both are great together. Feeling the love between you two!

You’re voice is unreal! You absolutely nailed this!

I love the passion they share while singing. Also love how she wrestled thru his hair. 💕

Please keep doing the Kat and Dave show, such talent and rapport 👏🏻👏🏻👏🏻👏🏻👏🏻💕

You guys are so awesome together! Love the joy you share.

Omg I love seeing you two together!! Wonderful! 💕

Loved it and you two are the cutest!!! ❤️ (Thank you so much 💕,it's been a tough couple of wks....)

She’s beautiful and their relationship is beautiful as well.

David Foster is so multi-talented it’s unreal.

You do on the right track and it’s really good collaboration for the musicians and song writers, singers and the ones who used to do live shows and broadway show experience make this program perfect!

Lovely video. Thank you, Kat and David.

I so feel you guys. Have fun and bravo to life and love whenever it comes.

Perfect love seeing you two together . I always thought David had feelings for Kat . Glad the two of you are together now , to share your love 💕 in these difficult times . 🥰 ❤️ 🥰

Both of you are so amazing. Be Happy!!! God given talents!!

The hit maker i love him!!!!

Such an absolutely beautiful song performed by an amazing couple, thank you ❤️🇨🇦❤️

The rendition, the love, your authenticity was beautiful!

Yet another great performance and vid from the Kat & Dave Show. I liked the little David Paich/Toto plug and tease for Got To Be Real. Perhaps another time to hear and see that song performed.

Love 💗 this song Kat and you two together are wonderful too!

OMG love this David is right Kat this was pretty darn good!! You guys are adorable

Oh they are so adorable together! He looks at her with such love! Just sweet!

He is amazing! She's not too shabby!! What a voice!

From American Idol to Masked Singer, they are amazing

I'm so impressed and love her beautiful voice this two are lovely ❤👏

Beautiful couple, and now parents together! So blessed❤️🇨🇦❤️🇨🇦

I did know he wrote this song. Such an amazing song. Kat..your voice is just beautiful!

They’re actually adorable together

This song is soooo beautiful reminds me so much of my 90s life childhood 🥲🥲

It’s so clear this man loves you! Love ❤️ it

Stunning! And your Love for each other is absolutely beautiful!

Why does David Foster look like Orville Redenbacher in this video? 🤔🍿😂🤣

Absolutely amazing it give me chills!!

I remember the fifth season with you and I do remember that yellow dress you wore. I happened to love that performance and Simon did need to apologize for his remarks as they were out of line!! You are a true gift as an actress, singer-songwriter. I also now love Country Comfort!!

I love her she is so caring in her words and singing

Love u 2. I can feel the love you guys have. Thank you. Icons and the legendary Mr David Foster.

The first time I heard this beautiful song was Whitney Houston, RIP... the absolute best.

She is definitely the ice cream and he is the banana from masked singer

Wow so nice to here katherine voice 😌 such purity and loved watching you since the beginning 👍true fan here

They’re Banana Split on The Masked Singer

Kat McPhee stays classy forever Love her

They are so genuinely happy

They are an ideal combination because Kathy sings while Davids accompany. The accompaniments elevates the singing.

Anyone else here thinking they are Banana Split from Masked Singer season 6!!!?

A beautiful partnership on every level.

I just love her voice so much

Okay! I have to eat crow. When I was aware the two of you were dating. I wasn't a fan of you two being together. However, watching these videos these past nights your love shines through. You obviously belong together and your love for one another shines through. Thank you for the entertainment during these difficult times. ❤️❤️