Christina Aguilera Waves at The Voice Season 4 Premiere, March 20, 2013
Once you're in The Voice family, you're in it for life! This was all too evident at the Season 4 red carpet premiere in Los Angeles on March 20. Not only did former coach Christina Aguilera attend, but we also saw some familiar faces from the last three seasons!
Click through the gallery to see some of your favorites! Are you excited for Season 4? Tell us below!