WEDDING BEEF? WERE THEY DO THAT AT…..

“Real Housewives of Atlanta” star NeNe Leakes is being sued by her “celebrity wedding planner” — who claims NeNe racked up a  MILLION DOLLAR bill for her big day … and never paid, TMZ has learned.

The woman going after Leakes is Tiffany Cook — who  claims NeNe hired Dream Design Weddings to coordinate the party  for her marriage to Gregg Leakes on June 22, 2013 … a wedding that will  featured on a Bravo TV special in September.

In her suit, filed in  Georgia, Cook claims Leakes promised to pay her 15% of the entire wedding budget  PLUS fees design and execution of the wedding PLUS travel expenses to the event.

In total, Cook claims NeNe’s budget for the wedding was $1.8  MILLION!!!!!!!!! And Cook claims she was due $270k (the 15%) PLUS  another $889,900 (design fees) PLUS $1,750 (4 coach tickets from Florida to  Georgia).

Cook claims NeNe did fork over the initial down payment  ($18,750) … but she hasn’t seen a penny since — and is suing for the  remaining $1,142,900 balance … PLUS damages.

In total, Cook — who  also put together Kordell Stewart‘s wedding to  Porsha — wants more than $2.5 MILLION for her troubles.

How’s THAT for a wedding gift???

A rep for NeNe tells TMZ …  Cook was NOT the wedding planner, it was a man named Tony Conway, who made  Nene’s wedding spectacular.

The rep adds, “This lawsuit has no merit and  it appears to be a baseless attempt to grab 15 min of fame.”

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