Colton was at the auditions on Wednesday night to support his sister Schyler Dixon. The pair had auditioned together last season, but Colton - who was cut just before the Top 24 round - told the cameras that he wanted to "take a back seat" and let his sister have the spotlight this time around.
However, the judges recognised Schyler in the audition room and found out that Colton was not planning to audition. "What?" said Lopez. "He almost made it! He could have made it to the Top 12!"
After demanding to see Colton in the audition room, Jackson said: "Dude, come on!" Colton insisted that he wasn't giving up on his singing dream and eventually succumbed to the judges' pressure to perform.
"We're not going to let you get away that easy," said Lopez.
Schyler was first to sing, impressing with a rendition of 'Breakeven' by The Script, before Colton took the stage for 'Permanent' by former American Idol winner David Cook.
Both siblings got tickets to Hollywood, with Colton looking slightly shell-shocked: "I have no idea what just happened... [Schyler] sucked me in again. Look what she did!"
Cook, who won the seventh season of American Idol, wrote on his Twitter account: "Awesome seeing Colton singing 'Permanent' tonight on @AmericanIdol. Humbled and flattered that he chose that song. (sic)"
American Idol continues tonight (Thursday, January 19) at 8/7c on Fox.
Watch Colton and Schyler's audition below:
Browse a gallery of photos from the American Idol season premiere below: