Rebel Wilson worked up a sweat in an outfit which was not expected during a rehearsal for her new movie Senior Year. The star rocked an oversized mesh t-shirt which showed off a glimpse of her Lycra bra underneath as she revealed she's getting into the dance spirit on set. MORE: Rebel Wilson is a total beach babe in slinky black swimsuit Rebel ditched her form-fitting favourites for the white and yellow Los Angeles Rams jersey which covered up her fit physique. WATCH: Rebel gives sneak peek at