Sneak Peek: Idol Alum Kellie Pickler Guest Stars on 90210 (VIDEO) Tweet October 14, 2011 by Kim Hoffman Related: American Idol, Sneak Peek , Kellie Pickler Credit: The CW Has sweetie pie Idol alum Kellie Pickler made her switch to acting? Check out her guest spot on the CW's 90210. And watch her full episode on Tuesday, October 18!
)
