Who doesn’t love a surprise John Legend performance? That’s just what concertgoers at Mariah Carey’s “All I Want For Christmas Is You” witnessed recently at the Beacon Theatre in New York City.

Mariah Carey fans went crazy when John Legend appeared to sing “When Christmas Comes.”

So grateful the @BeaconTheatre stage was graced tonight with @johnlegend. I ❤️you @chrissyteigen ?#WhenChristmasComes pic.twitter.com/MdZhDo77TI

— Mariah Carey (@MariahCarey) December 8, 2016

What even is life?! ?? “When Christmas Comes,” which appeared on Carey’s “Merry Christmas II You” album, is a duet that originally featured Legend, so his appearance shouldn’t have been a *total* surprise. But the fans still ate it up.

The video was originally posted by @iamawong, despite what Carey’s tweet says.

Surprise! It's @johnlegend and @mariahcarey singing "When Christmas Comes" tonight @beacontheatre #aiwfciy #mariahcarey #alliwantforchristmasisyou #johnlegend #surprise #surpriseguest #whenchristmascomes #christmas #lambily More videos up later @alansconcerts

A video posted by ⠀⠀⠀⠀⠀⠀⠀⠀⠀ ALAN WONG (@iamawong) on Dec 7, 2016 at 6:22pm PST

No shade. Just setting the record straight.

People could not contain their excitement over the live duet featuring two music legends.

@MariahCarey @BeaconTheatre @johnlegend @chrissyteigen @MariahNow pic.twitter.com/3EgwyRZ0Ok

— Inspiring Visionary (@TheRootOf_je) December 8, 2016

Pun fully intended.

The duet appears to have satisfied people’s Mariah Carey Christmas music fix.

@MariahCarey @TaLLoN7 @BeaconTheatre @johnlegend @chrissyteigen @MariahNow every time I think of Christmas I think of Mariah and her music.

— Dontae James (@dontaeISprince) December 9, 2016

For real, though. Mariah Carey is definitely THE queen of Christmas. It is like her entire career is based off of the holiday.

It was definitely a nice treat for people who traveled thousands of miles for the show.

@MariahCarey @BeaconTheatre @johnlegend @chrissyteigen @MariahNow i came all the way from Germany/italy to see you

— SandoCa (@Italosan22Ca) December 8, 2016

But, like, do you love Mariah or nah?

Who would have thought that one concert could be so impactful?

@MariahCarey @BeaconTheatre @johnlegend @chrissyteigen greatest night of my #life pic.twitter.com/gnlB9SoG4D

— Brie✌️ (@coolbreeze0624) December 8, 2016

This is why Mariah Carey is the queen.

BONUS: Here is the “When Christmas Comes” music video.

READ: This Mexican Pop Singer Is Breathing New Life Into This Mariah Carey Classic

Share this story with all your friends by tapping that little share button below!