MTV.com News — 'We fight every night, now that's not kosher,' say Main Source lyrics the Gym Class Heroes frontman posted on his blog.By Gil Kaufman Katy Perry and Gym Class Heroes' Travis McCoy Photo: MJ Kim/ Getty Images How not engaged are Katy Perry ... more info

VH1 News — Katy Perry and Gym Class Heroes frontman Travis McCoy reportedly broke up some time before New Year's Eve. more info

E! Online - "Hot N Cold" singer Katy Perry's relationship with Travis McCoy of Gym Class Heroes is officially on ice. A source close to the couple has confirmed to E! News that the two called it quits just before New Years. more info

Yahoo! Music — E! Online - "Hot N Cold" singer Katy Perry's relationship with Travis McCoy of Gym Class Heroes is officially on ice. A source close to the couple has confirmed to E! News that the two called it quits just before New Years. more info

E! Online — "Hot N Cold" singer Katy Perry's relationship with Travis McCoy of Gym Class Heroes is officially on ice. A source close to the couple has confirmed to E! News that the two called... more info

E! Online — "Hot N Cold" singer Katy Perry's relationship with Travis McCoy of Gym Class Heroes is officially on ice. A source close to the couple has confirmed to E! News that the two called... more info

AngryApe — The singer and Gym Class Heroes star call it a day say reports more info

Perez Hilton — This is for the best! I Kissed A Girl singer Katy Perry and her boyfriend, Gym Class Heroes frontman Travis McCoy, have broken up. And not because she's kissed a girl! On the day of New Year's Eve, Travis took to his blog to let the world know what h... more info

People.com — The "I Kissed a Girl" singer and the Gym Class Heroes frontman dated for nearly a year more info

AngryApe — The Gym Class Heroes frontman inks a solo deal more info