Mojo Men

The Mojo Men were true one-hit wonders, taking the song "Sit Down I Think I Love You" into the top 40 in 1967.  The band was a big part of the San Francisco scene and the psychedelic era but broke up in 1969 after very little repeat record success.  It's interesting because their hit was a song written and recorded originally by the Buffalo Springfield.  Very much a true forgotten oldie.
Listen here