Watch Kelly Clarkson Perform a Medley on the American Idol Finale

Mississippi singer Trent Harmon may have won season 15 of American Idol on Thursday night, but season one winner Kelly Clarkson stole the show.

As part of a pre-taped concert that aired during the finale on FOX, the Grammy Award-winning singer performed a medley that included her greatest hits, such as “Stronger,” “Miss Independent,” and “Since You’ve Been Gone.”

The 33-year-old pop star, who is expecting her second child, joked on Twitter: “Who’s that sweaty, pregnant girl singing?? ….oh snap that’s me hahaha!! #ohwell”