WWII is a duet album by Waylon Jennings and Willie Nelson, released on RCA Victor in 1982. Featuring six solo Jennings songs and five duet tracks, it was originally intended to be, as the title suggests, a continuation of or sequel of sorts to 1978's extremely successful Waylon & Willie. Chips Moman, who had produced Jennings' Black on Black and, famously, Nelson's Always on My Mind several months before, produced the album with Jennings' assistance.