A few minutes ago, while listening to a random selection of songs in my digital library, a cover of The Supremes singing Stevie Wonder's "Uptight (Everything's Alright)" suddenly invaded my headphones. The track is a "vault" recording that surfaced in the last 10 or so years on a compilation entitled "Motown Sings Motown Treasures". The bass was very funky, but the recording didn't sound like it was done at the Hitsville studios in Detroit. Recognizing that the "Dont Forget the Motor City" website run by Kevin Hughes has a mountain of good information in it, I checked with it to see what it said. Don't Forget The Motor City » The Supremes; recorded L.A. / Hitsville, completed 27-Apr-66 ; produced by Frank Wilson, Hal Davis 12-Jan-05; CD (S): Hip-O Select B0003619-02 Motown Sings Motown Treasures Volumes 1+2 25-Mar-08; CD (M): Hip-O Select B0003263-02 Let The Music Play: Supreme Rarities [alternate mix (vocal?)] I think this means Kevin didn't have good data for this recording. The liner notes for the CDs might have better detail but I'm not positive. Hughes is the person who supplies a lot of the technical recording date (dates, locations) for the vault releases. The fact that it lists both Los Angeles and Detroit, suggests one of two things. One, Kevin couldn't tell from the data in the Motown library... or, Two, the song was done in two places... with the backing track recorded in one location and the vocals done somewhere else. I don't believe the backing sounds like the Funk Brothers. The electric guitar sounds like one person, not that thing they did in Detroit where three guitarists split the guitar into three separate funky parts. The producers credit on the Hughes website suggests to me that the recording was done in California. I think The Supremes, recorded a lot of their less funky material in California. It's possible the backing track was shipped to Detroit, and the Supremes added vocals there - but there doesn't seem to be much point to that - because they could have just used the Funk Brothers. Any "Wrecking Crew" experts here willing to listen to this track and come to a conclusion? I wondering if maybe, the musicians listened to the Stevie Wonder track in their headphones during the session. The tempo seems to be nearly identical to the Stevie Wonder recording. The Suprmes recording clocks in at 2:41, the Stevie Wonder recording clocks in at 2;53 on Disc 27 of the Hip-O singles set. Listening to the Stevie Wonder original, it has more of that grungy "recorded in a garage" feeling that happened in that little magical room behind the Hitsville building (aka "Studio A"). Other possibility is horns were added later in Detroit.