R&B star Rihanna is set to perform at the Victoria`s Secret fashion show in the US on December 4. The 24-year-old `We Found Love` hitmaker is expected to perform two songs, one of which will be her new single `Diamonds` at the event, reported People magazine. She will be joined on stage by Justin Bieber and Bruno Mars. Previous musical guests to have performed alongside the models include the Spice Girls, Katy Perry and Justin Timberlake, while last year`s Nicki Minaj, Kanye West, Adam Levine and Jay-Z all performed, with Beyonce Knowles looking on from the front row.
