After having released recently her hit collection "Keeps Getting Better", Christina Aguilera has already stepped into the studio to record some songs for her next album, which she promises it will sound quite different from the rest. The 27-year-old pop star tells Billboard, "With my last album, I had music that was very '20s, '30s and '40s, and was very detailed and part of a very specific genre and sound. But with this new album, I wanted to go in a completely opposite direction -- a very futuristic, robotic sound and computer-sounding vocals." For the album, Aguilera is teaming with producer Linda Perry and expect to release it by summer 2009.