Eminem is being sued for unpaid royalties by the people who discovered him, according to gossip site 'TMZ'.

A lawsuit filed last week says Dr Dres label Aftermath and its parent Interscope owe over $1 Million to FBT Productions and another company called Em2m.

The report claims the rappers original record deal miscalculated the amount his former producers would earn from his success.

The two companies are suing for back royalties, damages and attorneys fees, says TMZ. Eminem- whose real name Marshall Mathers- is currently working on his comeback record with mentor Dr Dre.