Justin Bieber, the young man responsible for the No. 1 record in the country at the moment, has arrived to the red carpet of the 2015 American Music Awards — and he's brought Nirvana along with him. Err, sort of.

The newly reinvigorated Purpose crooner kept things casual for the evening, giving us (squeaky clean) '90s grunge with his teen heartthrob blonde 'do, ripped jeans and a vintage Nirvana tee. He also barely cracked a smile, but considering he was only just caught serenading on-again, off-again lady friend Selena Gomez with a piano rendition of "My Girl" in Beverly Hills this past weekend, it's safe to say he's in good spirits at the moment.

What do you think of Biebs' latest red carpet look? Check out the gallery above, and flip through all the looks on the 2015 American Music Awards red carpet down below.