Watch: Martin O'Malley sings a Taylor Swift song

By Joshua Axelrod, Joshua Axelrod

Published December 20, 2015

Martin O'Malley's appearance on "The View" Tuesday concluded with the Democratic presidential candidate showing off his musical chops.

"Katy Perry, I'm told, is doing a benefit concert for one of my opponents in Iowa," O'Malley said. "So in response, I thought I'd offer this up for Taylor Swift."

O'Malley then brought out his guitar and began playing and singing Swift's "Bad Blood."

Perry will be performing at the Jefferson-Jackson Dinner, an event for Hillary Clinton supporters, on Oct. 24 in Des Moines, Iowa.

O'Malley's song choice and Perry's endorsement of Clinton mirrors a publicly passive aggressive feud between Swift and Perry. It is widely believed that Swift wrote "Bad Blood" after a fallout with Perry, a former friend and member of Swift's "squad."