Who is Lady Gaga's long-time collaborator and producer?

Lady Gaga's long-time collaborator and producer is RedOne. The Moroccan-Swedish producer played a major role in shaping the dance-pop sound that launched Gaga's international career.

RedOne co-wrote and produced major early hits including “Just Dance” and “Poker Face,” both from Gaga's 2008 debut album, The Fame. Their partnership continued on songs such as “Bad Romance,” “Alejandro,” and “Judas,” helping define the dramatic, electronic style associated with her early work.

A common mix-up is assuming that one producer created all of Gaga's music. She has also worked extensively with producers including Martin Kierszenbaum, Fernando Garibay, Zedd, Mark Ronson, BloodPop, and Cirkut. RedOne is best understood as one of her most important early collaborators rather than her sole producer.

RedOne, born Nadir Khayat, has also produced or co-written songs for artists such as Jennifer Lopez, Enrique Iglesias, and Usher.