This post covers the 1970s television series and the 2003 movie
The instrumental theme song from the television series S.W.A.T. is entitled, well, “Theme from S.W.A.T.” It was performed by a 1970s American funk band called Rhythm Heritage and was composed by Barry De Vorzon, an American producer, singer and songwriter.
In the 2003 movie, the theme song was carried on. There were several variations of the theme song in the movie, and if you’re looking for that rap version, it’s entitled “Samuel Jackson.” Yes, that’s the title (“Samuel Jackson”), as in the same as the guy in the movie. It was performed by American rock band Hot Action Cop and is part of the S.W.A.T. Original Motion Picture Soundtrack.
“Theme from S.W.A.T” by Rhythm Heritage reached #1 on the Billboard Magazine Hot 100 singles chart in 1976. It was part of Rhythm Heritage’s album Disco-fied. The song in the album is a slightly different recording of the one used in the series.
S.W.A.T. ran only for two seasons from 1975 to 1976 on ABC. It starred Steve Forrest, Rod Perry and Robert Urich. It is said that the show’s early cancellation was partly because it was too violent at that time (1970s).
Listen to “Theme from S.W.A.T.” by Rhythm Heritage
By the way, you can watch the real intro to the television series in YouTube, but the dude who uploaded it disabled embedding, so, whatever.
Listen to “Samuel Jackson” by Hot Action Cop