Rihanna, Alicia Keys, & Justin Bieber Bring the Heat at Radio 1 Big Weekend

Rihanna helped close out BBC Radio 1’s Big Weekend 2010 in Bangor, North Wales, by performing in front of 20,000 sweaty music lovers, including Prince William. The singer went back to her island roots, rocking a Rastafari-inspired getup during her set on the main stage. Alicia Keys and Justin Bieber were also among the main attractions at the annual festival held over the weekend.