He got to "Tap that Ass" and he liked it. Mayer is onto some new strange. Man, that guy is a lucky motherfucker! Katy Perry is â€œfalling from Cloud 9â€ once again. Just two months into a relationship with John Mayer, he has reportedly called things off with the â€œWide Awakeâ€ singer â€“ and sheâ€™s heartbroken. According toUs Weekly, Perry is â€œreally upset about it,â€ even though she is also trying to downplay the seriousness of the summer romance. But just because things have cooled down between the two, it doesn't mean that Perry, 27, and Mayer, 34, can't end up as friends. A source tells People magazine, "They were honestly having fun." The split went down some time before an August 21 dinner party the two attended â€“ albeit, separately â€“ at a mutual friendâ€™s home. According to Radar Online, the two singers completely ignored each other the entire evening and even went as far as to stay in different rooms throughout the soiree. â€œWhen they passed each other they both just kept their heads down,â€ an eyewitness tells the site. â€œIt was like they had this incredible animosity for each other and everyone else at the party could feel it.â€ Perry joins a long list of famous hearts broken by Mayer including her own pal Taylor Swift, Jennifer Aniston, Jessica Simpson, and Jennifer Love Hewitt.