American Music Awards -- All the Red Carpet Looks

"I feel personally offended by how amazing Selena Gomez looks with blonde hair," one user tweeted.

Selena Gomez showed up to the American Music Awards red carpet saying, "New look, who dis?"

The "Wolves" singer debuted a platinum blonde hairstyle on Sunday night, pairing the look with a rocking black leather mini dress, and fans on Twitter have a lot of opinions.

Gomez will perform for the first time in over a year during the award show, her first performance since her kidney transplant earlier this year.

While most fans agree that she looks hotter than ever, the look has also drawn comparisons to on-again boyfriend Justin Bieber. Here's what they're saying so far:

View Photos Getty American Music Awards: Every Red Carpet Look You Need to See