Washington, Feb 20 : Hollywood actor Rob Pattinson has refused to compose a soundtrack for his flick `Twilight', as he wants to keep music as a back up career.

Although The `Twilight' actor, who is a talented composer, pianist and guitarist, wrote two songs for the original flick, helping them to top the American album charts, he is not ready to do the same for the sequel.

"I really didn''t want it to look like I was trying to cash in. Music is my back up plan," Contactmusic quoted Rob, as telling OK! Magazine.

Meanwhile the rock band Paramore has been signed up to pen the title track for the flick. (ANI)