“2JN” is an instrumental track written by guitarist Peter Buck as a tribute to Phil Spector’s arranger, Jack Nitzsche. Nitzsche died in August 2000, as R.E.M. were recording their 12th album, Reveal in Ireland. So, in tribute, Buck composed this short piece as a pastiche of Nitzsche’s work.

“2JN” was released as the B-side to the US version of the “Imitation of Life” single in April 2001. It was later included on a bonus CD included with In Time: The Best of R.E.M. 1988-2003 which featured B-sides and rarities of that era.