American Idol Season 4 Overview
Season 4 aired on Fox from January to May 2005. Judges included Simon Cowell, Paula Abdul, and Randy Jackson. Underwood impressed with consistent vocal performances and strong song choices.
Impact of Winning American Idol
Winning American Idol launched Underwood's country music career. She later became one of the show's most successful alumni, with multiple Grammy Awards and chart-topping hits.
