Nicole Richie

Celebrity Super Fans Revealed

Being dragged around by a chain while on all fours didn't seem to bother reality star Nicole Richie since it meant sharing the stage with her idol Britney Spears during the singer's Las Vegas concert last month. Spears dedicated her song "Freak Show" to Richie, a self-declared Britney fan since the age of 16, before inviting her up on stage. After the show, the singer tweeted, "Can we all give a round of applause to @NicoleRichie for playing along in the show tonight? U looked hot crawling on all fours ;)." Richie was still recovering from the moment. "Am I alive?" she tweeted.

c:abcnews