Justin Bieber promises Grammy surprise

Justin Bieber has promised his performance at this year's Grammys will include "some surprises".

The Canadian teen singing sensation - who is taking to the stage at the 53rd Grammy Awards on Sunday (13.02.11) alongside his mentor Usher and 'Karate Kid' star Jaden Smith - revealed the trio are set to be joined by other mystery artists.

He explained: "I am going to perform and I am gonna have some surprises there. We got some other performers that are going to be there with me, Jaden and Usher, so I'm really excited about it.

"Jaden's cool. He's gonna kick it. He's gonna kill it. I'm excited."

After receiving two nominations for Best New Artist and Best Pop Vocal Album for 'My World 2.0', the 16-year-old singer believes his hard work has justified his two Grammy nods.

He added to MTV News: "I'm very excited, up for two Grammys. So this year's really just big for me. I'm really blessed to be even nominated. I think I worked really hard, so I think I earned it."