The 26-year-old entertainer was seen posing on the red carpet with Jordin Sparks, who he toured with a few years ago.
Before the show, Jesse wowed the crowd with a performance of his latest single “Back Together.”
In case you didn’t know, Jesse will release his new EP In Technicolor Part 1 on Tuesday, December 10.
FYI: Jesse is head to toe in Saint Laurent.
10+ pictures inside of Jesse McCartney attending the American Music Awards… More Here! »