After selling out their first U.S. stadium show in minutes back in August, BTS showed Jimmy Fallon just how hot they are right now.

The Korean boy band stole The Tonight Show on Tuesday night, where they dropped by to perform and talk about their casual appearance at the United Nations General Assembly yesterday.

Now that they've finished speaking in front of very important diplomats about their "Love Myself" anti-violence campaign, the band has set their sights on the Grammys.

"We can dream," RM told Fallon in an interview.

BTS are also damn good dancers, battling Fallon on a whole range of dance moves made popular by Fortnite.

While Fallon is no slow mover, he definitely can't keep up with the professionals.

Oh, and what's a BTS appearance without a performance? The band did a rendition of "I'm Fine" and "Idol" to cap off the show.

Some were calling it the band's best TV appearance in the U.S. so far.

Hands down the best #BTS interview in the US so far. Well done @jimmyfallon. #BTSonFallon — JJ Ryan (@JJRyanOnAir) September 26, 2018

This was HANDS DOWN the BEST US TV appearance @BTS_twt has ever had. A warm host who made them laugh and feel so comfortable, a hype ARMY audience, amazing camera work, perfect love vocals... just high quality content. I’m so so happy right now 💜 #BTSonFallon — 💜 #SpeakYourself (@DarlingSpectrum) September 26, 2018