Khloe Kardashians hubby a dirty ol cheat Lamar Fri-14-Dec-12 17:11 Share this By Megan SlovakKaty Perry and John Mayer attended their first red carpet event together on Wednesday night at the launch of a festive show in New York. The pair has reportedly been dating on and off since the summer, but they have stayed away from public events. However, they appeared to confirm rumours of a blossoming romance by walking the red carpet together at a showing of A Christmas Story: The Musical at Manhattan's Lunt-Fontanne Theatre. Perry and Mayer met the festive production's young cast and happily posed for pictures with the show's composers, Benj Pasek and Justin Paul. The I Kissed A Girl hitmaker also posed with a Santa Claus impersonator at the event. You May Also Like Was John Mayer cheating on Katy Perry? Katy Perry has detoxed her house of John Mayer Why did Katy Perry break up with John Mayer? Become a fan of The Edge on Facebook and on Twitter .