Ex-'Dance Moms' Star Mackenzie Ziegler Countersues Music Producer, Blasts Abby Lee Miller

"Dance Moms" star Mackenzie Ziegler is countersuing music producer who sued her, saying the guy's a fraud who never paid her for her tunes ... and she's laying the blame on Abby Lee Miller.

Mackenzie and her mom, Melissa Gisoni, countersued Kismet Music and its head honcho, Andrew Logan, after Kismet sued the 13-year-old a couple months ago. Kismet claimed she allegedly broke her contract by working with another producer.

Mackenzie says the only reason she signed with Kismet was 'cause Abby told her it was a bonafide hit maker. Mackenzie also claims  Abby strong-armed her and her family into signing the contract.

Abby is not a defendant in Mackenzie's suit.

Mackenzie claims Kismet and Logan have none of the accolades Abby hyped, and claims they've grossly underpaid her for the music she's already recorded.

Mackenzie wants the rest of the money she says she's owed and her Kismet contract voided.