Julianne Hough dancing with the stars gym work out sunglasses Julianne Hough dancing with the stars gym work out sunglasses

Julianne Hough recently landed a movie role opposite Tom Cruise in the upcoming Rock of Ages as Sherrie, and now the 22-year-old actress and singer is getting her body in tip-top shape for the part!

Ryan Seacrest's girlfriend left a grueling workout session with celebrity trainer Tracy Anderson. By the looks of her muscular legs, she's on the right track.

Rock of Ages begins filming this May.

Find out which former American Idol contestant is currently starring in the Broadway version of Rock of Ages ... after the jump.