Pop star Christina Aguilera has commissioned designer Roberto Cavalli to exclusively design the elaborate costumes for her Back to Basics world tour. Cavalli, who is known for his splashy stage costumes, has created 10 outfits for Aguilera and will also create looks for her dancers. According to Women's Wear Daily, some of the outfits include a Forties-style white stretch satin tuxedo, bordered with golden pearls and topped with a white fox stole; a Fifties-inspired satin silk bustier and printed, gold-leaf and crystal-adorned silk taffeta skirt; a Sixties suit embroidered all over, and a tailored jacket with embroidered tails to be paired with a red-and-black Swarovski-adorned bustier. The world tour begins in the US in February (07).