When Jennifer Lopez and Marc Anthony needed costumes for their upcoming tour, they called in a favor from one of J.Lo's favorite designers, Roberto Cavalli. A few weeks back, J.Lo helped Cavalli open his Just Cavalli boutique in NYC, where she kept close to the designer all night - perhaps talking last minute costume details? Cavalli admits to being inspirated by music, so its no wonder he has also been responsible for Christina Aguilera's and Michael Jackson's on stage looks. Cavalli has created five looks for Jennifer and a variety of tailored suits and separates for Marc. For Jennifer's, you can expect a 1970's vibe, followed by some urban cool and menswear-inspired looks that complement the singer's personal style. As one of her fans, Cavalli notes, "I am honored to be working with Jennifer. I appreciate her sense of glamourous, sophisticated style and have worked with her to bring as much of her personal style into her tour costumes." We can't wait to the husband-wife duo on stage - their tour kicks off tonight in Atlantic City, New Jersey.