How Music Stars Spent Summer Vacation

Katy Perry hits the rodeo! Britney Spears goes for a ride with DJ Pauly D! See how the stars spent the hot summer months

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LADY GAGA

"Rockers with long hair have a sweetspot for girls like me," Tweeted Lady Gaga, who dropped by Howard Stern's Sirius show and performed "Edge of Glory" and "Hair." Her fans warned him to be nice to "Mother Monster" – and he was, she Tweeted. "He was a doll. :)"