Celebrity Fitness
Time Inc Digital Studios, Steve Granitz/WireImage
"I'm thin already."
"Being slim and fit are two different things," says Michelle Lovitt. You can be slender and out of shape, with brittle bones and in poor cardiovascular health. "When I work out with Lady Gaga, we try to create lean muscle," says her trainer, Harley Pasternak, noting an added benefit: Most people noticed that they have more energy when exercising regularly.SHOP IT
Heartbeats by Lady Gaga headphones, $100; bhphotovideo.com.
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