Katy Perry made her feelings about her past relationships clear during a recent concert as she took not-so-subtle swipes at some of her famous exes, including Orlando Bloom and John Mayer.While headlining the O Son do Camiño festival in Santiago de Compostela, Spain on Thursday, the 40-year-old pop star made playful jabs at several former flames as part of an onstage stunt while highlighting her current romance with former Canadian Prime Minister Justin Trudeau.During a performance of her hit 2019 song "Never Really Over," Perry sang and danced in front of a giant smartphone prop that displayed incoming calls from some of her exes, per videos shared on social media.NEWLY SINGLE KATY PERRY ENJOYS INTIMATE DINNER WITH FORMER CANADIAN PRIME MINISTER DURING WORLD TOUR BREAKWhen the screen showed a call coming in from Diplo, the "Firework" hitmaker nervously hit the "Decline" button several times before covering her eyes and strutting away from the phone.Katy Perry took playful jabs at some of her famous exes during a recent concert in Spain. (Stu Forster/Getty Images)Perry briefly dated the DJ in 2014 after the pair were linked at Coachella during a break in the singer's relationship with Mayer.In a 2017 appearance on "The Late Late Show with James Corden," Perry placed Diplo behind Bloom and Mayer when asked to rank her exes' performances in the bedroom.Diplo later laughed off Perry's ranking, joking on social media that he had won the "bronze medal in the sex Olympics."KELSEA BALLERINI DEFENDS EX MORGAN EVANS AFTER FANS SHOUT OBSCENITIES ABOUT HIM DURING CONCERTPerry used a giant smartphone prop to pretend she was rejecting calls from Orlando Bloom, John Mayer and Diplo. (Pedro Gomes/Getty Images)The phone prop next displayed an incoming call from a contact labeled "JM," seemingly referring to Mayer, whom Perry dated on and off for nearly three years between 2012 and 2015.Perry turned around and walked back to the phone before holding her hand up and backing awa...