• KATY VS. CHRISTINA  photo | Christina Aguilera, Katy Perry

Credit: Flynet; INF

Published: Monday November 15, 2010 11:00 AM EST

2010

KATY VS. CHRISTINA

Diva-off! The new Mrs. Russell Brand worked out in January in her Wildfox Couture T-shirt, while the newly single Ms. Aguilera announced her intentions this week in L.A.