Selena Gomez: 'I Knew You Were Trouble' Dancer!

Selena Gomez looks chic while leaving the Nine Zero One Salon on Thursday afternoon (December 13) in West Hollywood, Calif.

The 20-year-old actress later visited with a friend that lived nearby before heading home for the day.

Selena recently uploaded a fun video of her doing a choreographed dance to BFF Taylor Swift‘s “I Knew You Were Trouble” with gal pals Francia Raisa, Sammy Droke, and Laura Quinn.

“SO Cheesy, I know but I’m glad I’ve got my girls….. and Gweny… :) @tayorswift13 we love you!!!,” Selena tweeted.

15+ pictures inside…