Lady Gaga and her ex-producer boyfriend Rob Fusari filed lawsuits against each other in March. The pair had worked on her award-winning album The Fame.Lady Gaga and her ex-producer boyfriend Rob Fusari filed lawsuits against each other in March. The pair had worked on her award-winning album The Fame. (Evan Agostini/Associated Press)

They may have had a bad romance, but now there's a cordial professional split between Lady Gaga and a music producer who said she ditched him as both a collaborator and a boyfriend after he had helped launch her career.

Court papers filed this week show the Grammy Award-winning Bad Romance singer and songwriter-producer Rob Fusari agreed to dismiss the lawsuits each had filed against the other in March in a Manhattan court.

He'd sought $30.5 million US, but it's unclear whether they made any monetary deal.

"Lady Gaga and Rob Fusari have agreed to end their dispute amicably and wish each other well. There will be no further comment by either of them," the singer's camp said in a statement.

Fusari had said the pop-meets-performance-art sensation shoehorned him out of her lucrative career after he co-wrote such Gaga hits as Paparazzi, Telephone and Beautiful, Dirty, Rich. He also claimed he came up with her stage name and helped get her a record deal.

Fusari, who has a producing credit on Lady Gaga's 2008 debut album, The Fame, met the singer two years before when she was still Stefani Germanotta, according to his lawsuit.

He said they forged romantic and business relations, but both soured and he was denied money their contract had entitled him to, including a 20 per cent share of her song royalties. He said he'd received $611,000 but was due far more.

Lady Gaga's lawyers had contended that Fusari was just an agent who got the then-inexperienced singer to sign an unfair agreement in 2006. Her lawsuit asked a court to void the "unlawful arrangement," or at least declare that Fusari wasn't owed what he claimed.

Lady Gaga won two Grammys in January: best dance recording, for Poker Face, and best electronic/dance album, for The Fame. She leads the field of nominees with 13 nods for this year's MTV Video Music Awards; the awards broadcast is set for Sunday.