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John Mayer , Katy Perry

These two cooled down as quickly as they heated up! Not long after the media began touting singers John Mayer and Katy Perry as a hot new summer couple the two called it quits the same month! Luckily, the romance was so short, they didn't have time to complicate things by leaving clothes and CDs at each other's houses they'd later have to collect. Well, that and nobody carries around CDs anymore anyway. (8/2/2012)

Hot and cold celeb couples of summer

Some stars spent the summer taking their relationship to the next level, while others went their separate ways. – By Lizbeth Scordo and Raechal Leone Shewfelt, omg! staff