"Soul Power 74 - Part I"
Single by Maceo and the Macks
from the album Us!
B-side	"Soul Power 74 - Part II"
Released	October 1973 (1973-10)
Format	7"
Recorded	January 26, 1971, Rodel Studios, Washington, D.C. (original "Soul Power") September 27–28, 1973, Advantage Studios, New York, NY (overdubs)
Genre	Funk
Length	3:00 (Part I) 4:07 (Part II)
Label	People 631
Writer(s)	James Brown
Producer(s)	James Brown

"Soul Power" is a song by James Brown. Brown recorded it with the original J.B.'s (plus Fred Wesley) and it was released as a three-part single in 1971. Like "Get Up (I Feel Like Being a) Sex Machine" and other hits from this period it features backing vocals by Bobby Byrd. It charted #3 R&B and #29 Pop.

Part 1 of "Soul Power" appeared on the 1972 album Soul Classics. Live versions of the song were included on Revolution of the Mind (1971) and Love Power Peace (1992; recorded 1971), but no longer version of the original studio recording received an album release until an eight-minute re-edit was issued on the 1986 compilation album In the Jungle Groove. The complete studio recording, over 12 minutes long, appeared for the first time on the 1996 CD compilation Funk Power 1970: A Brand New Thang.

with The J.B.'s:

In 1974 Brown created an instrumental version of "Soul Power" by having Maceo Parker and Fred Wesley overdub new horn parts onto the rhythm track of the original recording. Sound engineer Bob Both added sound effects at several points to conceal where the original horn track had bled through into the rhythm parts. Titled "Soul Power 74" and credited to "Maceo and the Macks", the new version was released as a two-part single on People Records and charted #20 R&B and #109 Bubbling Under Pop. It also appeared on the album Us!.

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Wikipedia