However, Mayer might be the biggest Deadhead of them all. Billboard
reports that the singer/songwriter has attended a total of five Grateful Dead concerts during their Fare Thee Well
Do you think these two are right for each other?
Perry and Mayer's recent sighting doesn't come as too much of a surprise as they were also spotted together this past May at a Met Gala after party
in New York City. See what went down that night in the video, below.