Alessia Cara singing Bad Romance to music of Johnny B Goode

From Jimmy Fallon's new game show That's my Jam. How do they improvise these songs so well??

[emma-leighcampbell]

I’m so happy Alessia is finally getting more recognition I’ve always loved her

[diddymies]

Absolute stunning singer. She can do it all!

[wrathika]

Must we pretend that all these performances are spontaneous? Even with preparation and rehearsal, it's fun and still shows their talent.

[shdwctchr]

Love Alessia! She is very underrated! Killing it everytime!!

[fowmoufpunk]

I love how they act so surprised when the two songs are shown, as if they haven't rehearsed it.

[ArtByDesign]

You can not convince me this part of the show is not predetermined and rehearsed…but it is still entertaining.

[Includezz]

okay, I wasn't waiting for this. That was actually fire!

[KrazyKiller]

I would totally buy this and listen to it on repeat

[Charmomilleseaurchin]

Even tho it was rehearsed she sounded beautiful and it was enjoyable

[LAVISHING]

It’s fun seeing good friends having fun!

[xchunlingx]

This why alessia cara my fav singer her versatility and voice is jus amazing 😍💗💗

[larknewt]

Alessia turned this into her concert OMG

[wholeshebang]

Lots of fun hearing this mash-up, though there's a bit of cheating. 😉 At 01:20 when she starts singing the chorus "Oh-oh-oh-oh-ohh, oh-oh-oh-ohh, oh-oh-oh, Caught up in a bad romance, " the band *switches* to the chords in _Bad Romance, which end at __01:35__ and goes back into _Johnny B Goode_ (which only has 3 basic chords), for the ending.

_Johnny B Goode_ is a classic, early rock 'n' roll song released in 1958 by legendary Chuck Berry! My band does this when rehearsing - just jamming out tunes for a change, then transitioning into and singing lyrics of other songs with the same chords and song structure.  
🎵 🎸 🎤 🥁 🎵 🎹 🎷

[julyaugust]

Ms. Cara!! you are so underrated!! I love you so much!!😢❤

[btetschner]

Wow, that was really good! Thank you for the video.

[erikquiroz]

"Chuck! CHUCK! It's Marvin. Your cousin, Marvin Berry! You know that new sound you're looking for? Well listen to THIS!"

[bohlalenchabeleng]

She made it what it was, for the first time I'm appreciating her tone.

[hustler]

O right!! This was spontaneous... I am convinced 😏

[TJOnAir]

How many have you rewatched this?
me: Yes