Sara Bareilles sat down with The Associated Press to talk about her new album and why The Neptunes tracks didn’t make it on her new album ‘Kaleidoscope Heart’. The idea of Sara Bareilles and Pharrell working on music sounds odd enough — but it’s not nearly as awkward as the actual event. The piano-playing songstress was exploring a new sound for her sophomore CD when she decided to try and work with the hitmaker for Jay-Z, Justin Timberlake, Gwen Stefani and more. When she walked in for her recording session, Pharrell was getting a haircut. It went downhill from there.

“I’m not a very good collaborator and I didn’t really know how to do it. … I felt really uncomfortable with just the process and so I think that’s why we didn’t really get anything out of it,” Bareilles said. Though the 30-year-old earned Grammy nods for her breakthrough hit, “Love Song,” Bareilles said she struggled to come up with new material for the follow-up to her platinum-selling 2007 debut, “Little Voice.” “I hadn’t really prepared for what would come after that,” she said.

AP: Those songs you recorded with Pharrell — where will they end up?
Bareilles: I would love to probably re-approach it instead of using what we ended up with. I’d love to do it again now that it’s not such a new experience. I think I have that tendency where my knee-jerk reaction is to sort of clam up and close myself off from doing something I’ve never done before. And it’s totally something I’m trying to let go of. I don’t know why I get so, I don’t know, nervous? I think I was star-struck, honestly.

*google.com