Hilary Duff is a Workout Wonder

Hilary Duff chats it up on her cell phone as she makes her way to the gym in West Hollywood, Calif., on Wednesday.

The 20-year-old singer/actress can be seen later this year in Greta, also co-starring Ellen Burstyn and Evan Ross.

Greta (Duff), a waitress, falls for an ambitious cook (Ross) at the restaurant where they work, only to find out he’s been in and out of a juvenile correctional facility for stealing cars.

But as their summer romance heats up, she has to overcome the concerns of her grandparents (Burstyn, Michael Murphy) about her boyfriend’s criminal past.

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