Katy, Britney in Selena's new CD

NEW YORK (AP) — Katy Perry and Britney Spears appear on a CD together but it’s not the latest Now compilation.

Rather, the pop singers have written songs on Selena Gomez (photo) & the Scene’s new album, When the Sun Goes Down.

“I did have a lot of artists that I was very lucky enough to have songs written by and it’s a good, uplifting album,” Selena said of her third CD. “It’s really fun and very dance-y and I hope people like it.”

Spears co-wrote the dance song Whiplash, while Perry co-penned That’s More Like It.

“I think it’s a powerful CD,” Selena said in a recent interview.

The 18-year-old’s first two albums have reached gold status. The new record — which has three songs co-written by Selena — is out next week.

Days after her disc’s release, Selena will get another girl-power boost with the July 1 release of her new movie, Monte Carlo, which also stars Leighton Meester of Gossip Girl and was co-produced by Nicole Kidman.

Selena says leaving Los Angeles to shoot in Paris and Budapest was “so refreshing.” But the grueling promotional tour that has followed — maybe not so much.

The nationwide campaign, including a string of mall appearances, was recently interrupted when Selena was hospitalized in Los Angeles for exhaustion, malnourishment and low iron.

Selena, who is dating Justin Bieber, says she enjoys having friends “in the business” and others who are not.

“You want people that obviously understand what you’re going through and then you also want people that’s like, ‘Let’s not talk about (movie) sets or press or any of that, let’s just talk about normal things.’”