LOS ANGELES (DS) Rihanna is set to perform at the 2012 MTV Video Music Awards. The ‘Where Have You Been’ singer confirmed the news on Twitter in a reply to a fan who expressed excitement about her then-rumoured performance. Rihanna joins a performance lineup that already includes Alicia Keys, Pink, Green Day, One Direction and Taylor Swift. She is nominated for five awards including ‘Best Female Video’ and ‘Video of the Year’.