Selena Gomez, Leighton Meester, Cory Monteith Tease 'Monte Carlo' Set Sing-A-Longs

by Christina Garibaldi

Selena Gomez is having a really big week. Her new album, When the Sun Goes Down, was released on Tuesday, and her new flick, "Monte Carlo" hits theaters on Friday. In the movie, Selena plays not one, but two different characters: American teenager, Grace, and a British heiress, Cordelia—which had Selena sporting a British accent.

"I did about two weeks [of training] before the film," Selena said of perfecting the accent. "It was really fun. I was really nervous."

Selena stars alongside "Gossip Girl"'s Leighton Meester and "Glee" star Cory Monteith—who obviously got the tough job of having to work with these gorgeous leading ladies.

"[You're] going to hang out with a bunch of hot chicks in Europe—sign me up!" Cory said with a laugh, about what attracted him to the role.

But this cast isn’t just good-looking, they're pitch-perfect singers as well—a talent they practiced plenty on set.

"We sang a lot," Selena said of her sing-a-longs with her co-stars. "I feel like we were very annoying to people on set," Leighton added.

So whose songs did they decide to sing?

"[We sang] to actual songs that were out," Selena revealed... "But we would create our own lyrics. It was really fun."

"There was a little jumping and jiving," Cory said. "We were so taken away by the moment, shooting in Paris, shooting the Eiffel Tower. It was incredible."

Are you excited to see "Monte Carlo"? Let us know in the comments below!