Miley Cyrus poked fun at her broken engagement to actor Liam Hemsworth during her concert in Arizona on Thursday (27Feb14), when a fan who had asked her to be his prom date got down on one knee and presented her with a corsage. The Wrecking Ball hitmaker had invited teenager Matt Peterson to join her onstage for a rendition of Adore You, and halfway through the tune, he posed on bended knee to hand his pop idol his gift. Cyrus was quick to comment on the familiar stance, quipping, "I was in this position once before, and it didn't work out too well the last time a guy got on one knee for me. Hopefully this will be better!" Peterson had won the chance to meet Cyrus in early February (14) after stripping off to film a video request for the singer/actress, wearing nothing but a big foam finger and holding a bunch of flowers as he asked her to be his date to his high school dance. Cyrus turned down the proposal but instead reached out to Peterson and offered to meet him backstage at her Bangerz gig in Arizona on Thursday. Gushing about the superstar after the show, Peterson tells Eonline.com, "She was the nicest person. I thought I was in love with her before, she most amazing person." Cyrus split from The Hunger Games hunk Hemsworth in September (13), over a year after becoming engaged.