DJ AM’s former girlfriend, actress/singer Mandy Moore, has spoken out about the death of the celebrity spinner, who was found dead of a suspected overdose in his Manhattan apartment on Friday.

“I am absolutely heartbroken,” Mandy said in a statement Saturday.

“For those of us lucky enough to have known him, Adam radiated a contagious exuberance for life and also personified the very definition of a true friend,” she continued. “To say that he will be missed beyond words is an understatement. My heart goes out to his loved ones.”

Mandy, 25, and DJ AM, 36, dated for several months in 2007 and briefly began seeing each other after the DJ survived plane crash last September. Mandy married rocker Ryan Adams in March.