Jennifer Lopez has terminated her year-long relationship with veteran manager Irving Azoff, although there appears to be some confusion over who did the dumping.

J.Lo insists that she formally ended her contract with the music industry mogul, with her rep confirming, "she let him go on Friday with no drama".

But insiders claim that Azoff fired the mommy-to-be for being "unprofessional" and letting husband Marc Anthony "constantly meddle" with her career, according  to TMZ.

Azoff allegedly sent J.Lo a letter last week, detailing in "blunt terms" why he ended the relationship.

This was reportedly followed by a "heated phone call" between the Latino diva’s people and Azoff.