Mon, Jul 15, 2013 5:08 PM EDT 1:04
Oh, to be Taylor Swift and have special friends! The country-crooner hit the stage in New Jersey on Saturday for her Red Tour concert, and was joined onstage by none other than Fall Out Boy's Patrick Stump! The two performed the band's latest single My Songs Know What You Did in the Dark (Light 'Em Up) together, while Swifty put on her best rock ?n? roll self! Rihanna sure knows how to have a good time. The "Stay" crooner kicked off her weekend aboard a mega-yacht sailing off the shores of southern France and it was pretty much everything you would expect it to be. Flanked by a flock of famous friends, RiRi spared no expense and enjoyed the sun surf like any good 'ol rock star . Black Eyed Peas star Fergie has filed legal papers to change her name to reflect her stage moniker and marriage to Josh Duhamel (Doo-Mel). The singer was born Stacy Ann Ferguson, but is best known by her nickname ?Fergie.?