By Erin Carlson

Associated Press Writer

Justin Timberlake, Miley Cyrus and Charlize Theron were among the celebrities who appeared at the fifth annual Fashion Rocks concert celebrating the relationship between music and fashion.

They walked the red carpet Friday night at Radio City Music Hall amid a media circus angling for glamour shots of other stars including Fergie, Rihanna, Chris Brown and the "Gossip Girl" gang.

Brown, the R&B heartthrob, soaked up all the attention with a smile as he showed off his dapper ensemble of a black vest and shirt, gray pants, shiny shoes and diamond stud earrings.

"To be a musician and a great entertainer, you have to be a trendsetter. To be a trendsetter, you have to know fashion--and I have fun with it," explained the singer, who later changed into khakis and a black shirt and scarf for a performance of his hit song "Forever."

The event will air Tuesday in a two-hour special on CBS. Proceeds will benefit Stand Up To Cancer, a program established by the Entertainment Industry Foundation to raise money for cancer research.