Lil Nas X was performing "MONTERO (Call Me By Your Name)" during the season finale of "SNL", and apparently all the gyrating was too much for his pants because they split down the front!!!
As he was dancing on a pole, you see him drop low, and that's when his pants ripped.
He immediately grabbed his crotch, then presses on to the end of the song.
(Fast forward to about 2:20 into the video.)
Photo Credit: Will Heath/NBC/NBCU Photo Bank via Getty Images.