Selena Gomez [1] looked totally poised as she hit the stage at the 2015 American Music Awards [2] at the Microsoft Theater in Los Angeles on Nov. 22 to perform her hit song "Same Old Love," showing one year can make quite the difference [3]. At the 2014 award show, Selena emotionally sang "The Heart Wants What It Wants," shedding a few tears on stage after her breakup with Justin Bieber. This year, there's a chance she has rekindled her same old love with the "Sorry" singer after they stepped out together [4] in Los Angeles on Nov. 21.

Selena has spent 2015 revamping her fashion style [5] and getting candid in interviews about wanting her music to be the center of the conversation — as opposed to her relationship with her ex-boyfriend. Her sexy performance — she wore a sheer shimmery jumpsuit [6] over high-waisted shorts and a crop top — only solidifies that Selena is a pop star, no matter who she dates. Keep scrolling to see her best moments on stage, then check out what she wore on the red carpet [7].