Biography
Superwolf is the name of a 2005 album released by Will Oldham, under his moniker Bonnie 'Prince' Billy, and Matt Sweeney. Sweeney's involvement is said to have arisen from a songwriting 'challenge' from Oldham.
A second album by this duo, entitled Superwolves, followed in 2021. It is formally credited to Matt Sweeney & Bonnie 'Prince' Billy (the artists' names listed the other way 'round), but Bonnie 'Prince' Billy & Matt Sweeney is the by far most popular and most used tag for this collaboration here on Last.fm.
Biography text from Last.fm, available under CC BY-SA.