Katy Perry nervous about Super Bowl performance

Pop star Katy Perry says she is having jitters about headlining the Super Bowl half-time stage next month.

The 29-year-old singer's name has been shortlisted along with Coldplay and Rihanna, reported People magazine.

"Honestly? I feel like I've outdreamt my dream. I don't get nervous about much, but I'll definitely be a little tingly inside that day," she said.