Lady Gaga opts for an American Apparel look at the gym

According to Gaga’s trainer Harley Pasternak, the diva of disguise wears surprisingly low-key ensembles to the gym. TMZ snapped her mid-workout in short shorts and a baggy white tank.

Pasternak says, “She works her ass off, she is one of the hardest workers I’ve ever worked with.” Gaga’s Tweets confirm the Madonna-like devotion to the gym:

From @ladygaga: “I just kicked my ass in the gym, time to wash it down with an ice cold NY beer.”

Except we bet Madge chooses a healthier post-workout elixir.