Carrie Underwood arrives at the 55th Annual GRAMMY Awards on February 10, 2013 in Los Angeles, California.

Jennifer Lopez and Casper Smart attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Taylor Swift arrives at the 55th Annual GRAMMY Awards on February 10, 2013 in Los Angeles, California.

Nicole Kddman and Keith Urban arrive at the 55th Annual GRAMMY Awards on February 10, 2013 in Los Angeles, California.

Kaley Cuoco attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Adele arrives at the 55th Annual GRAMMY Awards on February 10, 2013 in Los Angeles, California.

Justin Timberlake attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Kat Dennings attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Kaley Cuoco attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

John Mayer attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

DJ deadmau5 and Kat Von D attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Kelly Osbourne and Giuliana Rancic attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Ashanti attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Carly Rae Jepsen and Matthew Koma arrive at the 55th Annual GRAMMY Awards on February 10, 2013 in Los Angeles, California.

Pauley Perrette attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Joan Osborne arrives at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California.

Redfoo attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Gotye and Kimbra attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Rapper Wiz Khalifa and Amber Rose attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Nelly attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Florence Welch arrives at the 55th Annual GRAMMY Awards on February 10, 2013 in Los Angeles, California.

Natasha Bedingfield attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Jack Osbourne and Lisa Stelly attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Ne-Yo attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Tito Ortiz and Jenna Jameson attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Neil Patrick Harris and David Burtka attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Jack White attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Estelle attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.

Trudie Styler and Sting attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California.