Democratic candidate Martin O’Malley played “Bad Blood” by Taylor Swift on The View in response to Katy Perry’s endorsement of Democratic frontrunner Hillary Clinton. O’Malley performs as the lead singer in an Irish folk rock band he formed 20 years ago, O’Malley’s March.

Maryland Gov. Martin O'Malley speaks during a roundtable interview in Annapolis, Md., Wednesday, Jan. 8, 2014, the first day of the 2014 legislative session. (AP Photo/Patrick Semansky)