Mary J. Blige and Jay-Z have been sued for copyright infringement.

Jersey producers Jermaine Jumpp and Michael C. Adams accuse Blige’s renowned producer, Rodney “Darkchild” Jerkins, of swiping the beat from their “On My Grind” for Blige’s “Enough Cryin.’”

The plaintiffs claim they submitted a CD containing their song to Jerkins back in 2001 and were shocked when “Enough Cryin’” surfaced on MJB’s 2005 album The Breakthrough, with Jay-Z receiving a co-writing credit.