Reports of Gaga's involvement first surfaced when she was spotted by paparazzi on a motorcycle ride with Cooper.
The copyright suits against Toronto-based Contempo Media and Montreal’s Indecent Xposure had sought up to $50,000 in damages from each outlet.
Cooper will serve as executive producer of the fundraiser airing in September.
Singer Rihanna has launched her newest fragrance called Crush.
Singer Justin Bieber has publicly called out a Hollywood gossip website and encouraged his fans to "spam" it.
Singer Zayn Malik says he is inspired to be "fearless" by the late pop icon Prince.