Britney Spears looks ***ier than ever on the cover of this week's Billboard magazine, which hits the Internet in full on Friday. The singer sports a bra and high-waisted shorts under a fitted black jacket in front of her own photo at the Planet Hollywood Hotel & Casi** in Las Vegas; Britney has been stationed there for over a year and has performed nearly 100 shows during her Piece of Me residency. In the exclusive Billboard interview, Britney revealed that she's "Slowly but Surely" Working on a ninth studio Album - her last offering, Britney Jean, was released in 2013 - adding, "There's a lot going on with my kids and schools and, you k**w, adding new sports and stuff like that. I'm gonna try to do my best to do an amazing album, but it's **t my full priority right **w." A ninth Britney Album may prove even harder to complete, as her Las Vegas show is in talks to be extending through 2017.