September, 30 2008: Indigo Nights

The live album by Prince, featuring performances from after shows at the indigO2 nightclub in London in 2007 was released.. The album includes nine live renditions of previously released Prince tracks, four cover songs, one new track, and a monologue. The CD was exclusively sold alongside the "21 Nights" coffee table book, which was published on September 30, 2008. The book achieved the ninth spot on The New York Times bestseller list for hardcover nonfiction.

In 2018, NPG Records released the album digitally on music platforms such as Tidal, Spotify, the iTunes Store, and Apple Music.