The 55th Annual GRAMMY Awards - Red Carpet

LOS ANGELES, CA - FEBRUARY 10: Singer Carly Rae Jepsen attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)

The 55th Annual GRAMMY Awards - Red Carpet

LOS ANGELES, CA - FEBRUARY 10: Siner Carrie Underwood attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)

The 55th Annual GRAMMY Awards - Red Carpet

LOS ANGELES, CA - FEBRUARY 10: Singer Natasha Bedingfield attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)

The 55th Annual GRAMMY Awards - Red Carpet

LOS ANGELES, CA - FEBRUARY 10: Singer Miranda Lambert attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)

The 55th Annual GRAMMY Awards - Red Carpet

LOS ANGELES, CA - FEBRUARY 10: Taylor Swift arrives at the 55th Annual GRAMMY Awards on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)

The 55th Annual GRAMMY Awards - Arrivals

LOS ANGELES, CA - FEBRUARY 10: Singer Jennifer Lopez arrives at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Jason Merritt/Getty Images)

The 55th Annual GRAMMY Awards - Red Carpet

LOS ANGELES, CA - FEBRUARY 10: Actress Kat Dennings attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)

The 55th Annual GRAMMY Awards - Red Carpet

LOS ANGELES, CA - FEBRUARY 10: Singer Rihanna attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)

US-MUSIC-GRAMMY AWARDS-ARRIVALS

Nominee for Best Pop Solo Performance Katy Perry 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 (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)