“Perfect Day” is a song written by Lou Reed in 1972, originally featured on Transformer, Reed’s second post-Velvet Underground solo album, and then as the B-side of his major hit, “Walk on the Wild Side”. Its fame was given a boost in the 1990s when it was featured in the 1996 film Trainspotting, and after a star-studded version was released as a BBC charity single in 1997, which became the UK’s number one single for three weeks. Reed re-recorded the song for his 2003 album The Raven.