Selena Gomez: KISS 108's Jingle Ball in Boston!

Selena Gomez takes center stage at KISS 108′s 2013 Jingle Ball held at TD Garden on Saturday night (December 14) in Boston, Mass.

The 21-year-old actress/singer hit the stage in her red hot outfit alongside Robin Thicke, Fifth Harmony and Flo Rida.

PHOTOS: Check out the latest pics of Selena Gomez

“I think people can’t handle growing up,” Selena shared at Z100′s bash in New York just the night before about the reactions to her hit, “Come and Get It”.

She added, “I’m getting older and I’m confident in myself.”

20+ pics inside of Selena Gomez…