Actor John C. Reilly broke out of his comfort zone on SiriusXM’s Sway In the Morning Wednesday, delivering his freshest party raps during a freestyle on the show.

Freestyles are a time-honored tradition on Sway In the Morning, and Reilly – who has an impressive musical background – gamely jumped on the beat to Common and Kanye West’s 2007 track, “Southside.” The actor kept the content of his bars to hip-shaking and body-rocking, though his flow never faltered as he peeled off delightful bars like, “Keep freaking, while I’mma speaking/ Dance young ladies til your knees start to weaken/ Cause I’ve got the style, the class to go with/ I’m numero uno so don’t you forget it.”

Reilly has regularly paired music and acting throughout his career, most notably in the 2002 adaptation of the musical Chicago – for which he earned an Oscar nomination – and the 2007 biopic parody, Walk Hard: The Dewey Cox Story, which gave him a Grammy for the soundtrack. Reilly also fronts his own folk outfit, John C. Reilly and Friends, while in recent years he’s recorded a pair of singles for Jack White’s Third Man Records and even appeared in a skit on A$AP Mob’s Cozy Tapes, Vol. 2.

Reilly’s next film, Ralph Breaks the Internet, opens November 21st. In December he’ll reunite with Will Ferrell for the Sherlock Holmes comedy, Holmes and Watson.