Singer Taylor Swift arrives at the 55th annual Grammy Awards in Los Angeles, California February 10, 2013. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) (GRAMMYS-ARRIVALS)
Nominee for Best Pop Solo Performance and Best Rap/Sung Collaboration Rihanna arrives on the red carpet at the Staples Center for the 55th Grammy Awards in Los Angeles, California, February 10, 2013. AFP PHOTO Frederic J. BROWN
Singer Jennifer Lopez arrives at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. Jason Merritt/Getty Images/AFP