Gaga counter-suing producer
Lady Gaga is counter-suing the music producer who claims he co-wrote her songs.
The 'Poker Face' singer has retaliated against her ex-boyfriend Robert Fusari - who is suing her for $30.5m (€22.55m) - and has claimed he tricked her into an "unlawful" arrangement to pay him 20% of her royalties.

