Porn star Bridget The Midget surprised Rihanna by treating the singer with a raunchy lap dance on hebirthday. The "Umbrella" hitmaker celebrated her 22nd birthday in Phoenix, Arizona Saturday. It was a surprise party thrown for her by rumoured new boyfriend Matt Kemp, reports contactmusic.com.Rihanna, who later moved to a local bar with her friends, was singled out before the adult star began dancing around her chair.
