Britney Spears just wants to go . . . back to the beach, that is.
The X Factor judge, 30, lamented summer's near end on Twitter and Facebook Saturday, posting a pic of her soaking up some sun -- and showing off her incredible bikini body in the process.
"Y'all ready for summer to end? I'm definitely not!" the singer captioned the picture, in which she rocks oversized sunglasses, a bright white bikini top and a huge smile. (The mom to Sean, 6, and Jayden, 5, didn't indicate when or where the photo was taken.)
Spears' X Factor duties are about to kick into high gear; the show's second season (and the pop star's first as a judge) premieres September 12.
Earlier this month, The Voice's Christina Aguilera -- who starred alongside Spears on The Mickey Mouse Club from 1993-1995 -- shared some words of support for her former costar with reporters during a NBC press conference.
"I came up with Britney . . . we were very close. Our paths have always crossed and they continue to cross," Aguilera, 31, said of her longtime pop princess peer. "I welcome her to this family of fun and entertainment and finding new talent . . . I know she's a pro and she's going to give, I think, great advice."