The pop star had a tendency to adorn her ring finger while she was dating now-ex John Mayer. The musician gave Perry a boho heart-shaped ring for Valentines Day 2013, but a source told PEOPLE that they weren't engaged at the time. That November, she wore another diamond ring at the MTV European Music Awards. Perry could also be seen donning a rectangular diamond at a number of other events during the relationship, including the 2012 MTV Video Music Awards. Despite all of the fake outs, Perry and Mayer never made it down the aisle.