"Soily" is a song written by Paul McCartney which was performed by his band Wings, usually at the end of concerts as an encore.
This song appeared while the Band on the Run demos were recorded, with McCartney on drums. At least seven takes were recorded in 1974 at Abbey Road Studios for inclusion in the unreleased Wings film, One Hand Clapping. These takes featured drummer Geoff Britton, and several can now be found in unofficial bootlegged versions.
Later release 
The song appears on the 1976 live album Wings over America and was released as the B-side on the "Maybe I'm Amazed" single in 1977. This version was recorded on 7 June 1976 at McNichols Sports Arena in Denver. A performance from One Hand Clapping can be seen on a DVD included with the 2010 remastered special edition of the Wings album Band on the Run.
The piece is notable for its bass line, which features a technically challenging chromatic run.