Jennifer Aniston must like confinement. We reported yesterday her involvement in a Gerard Butler romantic comedy set in prison, and now we have a bit more info on her other jail-themed flick, “Goree Girls.”

According to the erstwhile “Friends” star, the film — based on a true story — will find Aniston teaming with other female inmates to start a country western band, which quickly becomes nationally popular. Asked if her vocal chops are up for the job, she was quick to point out that didn’t really matter. “I’m not supposed to know how to really sing,” she replied.