"#1" is a song recorded by American rapper Nelly. It was released on August 29, 2001 as the lead single from the soundtrack to the 2001 film Training Day. It was also included on Nelly's second studio album Nellyville (2002). The song was most known for igniting the feud between Nelly and KRS-One, for which KRS-One perceived it as a diss for being too similar to "I'm Still #1" by his group, Boogie Down Productions. Music video The music video for the song features Joe Perry of Aerosmith on guitar. The plot of the video closely follows Training Day with Nelly playing a dual role as both Ethan Hawke and Denzel Washington's characters of a rookie cop and a corrupt veteran cop. Remix The official remix features the group Clipse and Postaboy, and the song is on Nelly's remix album, Da Derrty Versions: The Reinvention. Track listing US Promo 1 #1 [Radio Version] 3:19 2 #1 [Instrumental] 4:08 3 #1 [Instrumental With #1 Chorus] 4:07 US Vinyl, 12", Promo A1 #1 [Album Version] 4:23 A2 #1 [Instrumental] 4:08 B1 #1 [Instrumental With #1 Chorus] 4:07 B2 #1 [Radio Version] 3:19 Charts References Nelly songs 2001 songs 2001 singles Songs written for films Songs written by Nelly Universal Records singles