Marriage has not mellowed pop beauty Christina Aguilera, in fact she seems to have rediscovered her raunchy side for her eagerly-anticipated new album.

Back To Basics, set for release this summer, features a track called Still Dirrty.nd also inputs from Nas and Outkasts Big Boi.

People thought she could sing before - well, you havent heard anything yet, producer Linda Perry told MTV.

Its definitely a risky record. Its not Stripped - shes in a completely different space, she added.

To add novelty to the soundtrack DJ Premier, another producer on the album, used a voice message left from a fan on Christinas website for one of the tracks.