Frank Micelotta, Getty Images

Taylor Swift continues to cover other artists' songs every night on her sold-out Speak Now World Tour, immortalized in her freshly-released new video 'Sparks Fly.' This week in Chicago, the country darling strummed an acoustic guitar and sang Fall Out Boy's pop punk hit, 'Sugar We're Goin' Down.'

"I listened to this my freshman year of high school. Me and my friend Abigail used to drive around to it," the young star explained -- not that the Windy City citizens needed an excuse as they belted out lyrics along with Taylor, nearly drowning out her soft singing with emphatic half-shouts.

So far on her current headlining tour, Taylor has sang a version of her fellow Pennsylvania native Pink's 'Who Knew,' rapped Eminem's 'Lose Yourself,' crooned Justin Bieber's 'Baby' and covered the Dixie Chicks' classic, 'Cowboy Take Me Away.'