Richard Simmons is a little obsessed with Lady Gaga. A while back, he tried to get Anderson Cooper to bounce with him to "Just Dance." Then he did an exercise routine to "Bad Romance." And earlier this week, he was photographed in this outfit, an homage to Gaga. I give him an A for effort—his legs aren't half bad. But, uh, Lady Gaga would neva, evah wear those white sneakers.
After the jump, more stars do their best Lady Gaga impressions.