Madonna

She might have covered up with a Ralph Lauren pantsuit during the Grammy ceremony, but Madonna nonetheless went out of her way to tone up for her performance of "Open Your Heart."
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On Jan. 24, her trainer Marlyn Ortiz brought Madonna and daughter Lourdes Leon for a ride at West Hollywood spin-class spot Cycle House, a SoulCycle competitor; heads turned to look at the trio, who took bikes in the back.
Madonna wanted to return the next day, but the class times didn't fit her calendar and private sessions aren't offered, so she asked for a class to be added to the schedule at 1 p.m. and again on Jan. 27. Wishes were granted.
Cycle House (where Nicole Kidman and producer Stacey Sher also have spun) declined comment.