Only several seconds of his first audition (and neither of his Hollywood Week solo performances) were shown, although his group performance with White Chocolate (including fellow finalist Matt Giraud) was aired in its entirety.
Throughout the competition, Allen received many compliments for his folk-inspired interpretations of modern pop songs.
After winning Idol, Allen made his Billboard Hot 100 debut with five songs charting within the top 100.
On June 7, 2009, Allen performed the National Anthem at Game 2 of the 2009 NBA Finals to a packed house including Adam Levine, Jack Nicholson, Rihanna, Paula Abdul and Leonardo Di Caprio.
Following the performance, which was described as "executed to perfection," Kris Allen was released on November 17, 2009.
Numerous sources, including the Associated Press, claimed that the margin "wasn't even close".
Certain commentators labeled the win as an "upset" since runner-up Adam Lambert had received a significant amount of media attention throughout the season and was widely perceived to be the show's front-runner.
During the final results show, he performed a duet with Keith Urban, singing Urban's single "Kiss a Girl", as well as a series of medleys with his fellow Season 8 contestants.
Before the results were announced, Allen performed "We Are the Champions" with eventual runner-up Adam Lambert and Brian May and Roger Taylor of Queen.Nearly 100 million votes were cast during the finale, setting a new world record for a televised singing competition.Unlike the previous season, the winning margin was undisclosed.He accompanied himself on all of these songs with his guitar.During the final performance show, Allen performed a reprise of "Ain't No Sunshine", Simon Fuller's choice of "What's Going On" and the coronation song, "No Boundaries".Cowell agreed and said, "I had written you out of the competition but that has changed after that performance." This performance helped Kris move on to the finals and win.