Gretta interviews nominees Rascal Flatts and Heroes' star Greg Grunberg.
Gossip Girl's Kelly Rutherford talks to Gretta on the red carpet .
Katie and Kellan present Carrie Underwood, Keith Urban, Taylor Swift, Rascal Flatts and Brad Paisley
Rascal Flatts announces Mariah Carey as the winner and she accepts her People's Choice Award at the
Neil Patrick Harris hits the red carpet at the People's Choice Awards 2011
Virginia Williams talks to PeoplesChoice.com on the red carpet .
How I Met Your Mother star Alyson Hannigan stops to talk to our red carpet correspondent.