[UPDATE 21 NOVEMBER 2021]: Megan Thee Stallion will no longer be joining BTS for their performance of the 'Butter' remix citing an "unexpected personal matter".

BTS and Megan Thee Stallion's 'Butter' remix is finally getting its live debut.

How to watch the 2021 American Music Awards

In a surprise announcement, the American Music Awards revealed that the two chart-topping acts will be coming together on the AMAs stage for the world premiere performance of 'Butter' on 21 November.

ARE YOU READY?! The WORLD PREMIERE performance of "Butter" by @BTS_twt and @theestallion will happen at the #AMAs... and YES, it'll happen at the show in Los Angeles!

Sunday, Nov 21 at 8/7c on ABC 💖 #BTSxAMAs #MeganTheeStallionAMAs pic.twitter.com/frOvgDnFY8

— American Music Awards (@AMAs) November 8, 2021

I’m so exciteddd😭😭😭💗💗💗💗 https://t.co/qf3Tp3ysfe

— TINA SNOW (@theestallion) November 8, 2021

The likes of breakout pop star Olivia Rodrigo and Puerto Rican rapper Bad Bunny are also set to perform at the annual awards show, with BTS joining Coldplay for a performance of 'My Universe'.

Here's how to catch the show:

BTS and Megan Thee Stallion met in New York last September and are both nominated for numerous AMAs this year including Artist of the Year and Favorite Female Hip-Hop Artist respectively.

The upcoming performance comes ahead of BTS' first in-person concerts since 2019 - a sold-out 4-night residency at the SoFi Stadium in Los Angeles, California later this month. The last day of PERMISSION TO DANCE ON STAGE LA will be livestreamed globally via Venewlive.

Check out their 'Butter' remix here:

Watch 3J's dance performance of 'Butter' featuring Megan Thee Stallion here: