Having submitted a demo to Dunhill, a LA based band named the 13th Floor became the permanent version of the group. The band went through three bassists until Rob Grill was enlisted into the incarnation of The Grass Roots that most of us know. He was the band’s primary lead singer in addition to playing bass.
In 1968, the band recorded their biggest hit, “Midnight Confessions.” The band was a four piece during this period and also featured Warren Entner on guitar/keyboards, Creed Bratton on lead guitar, and Rick Coonce on drums. When Bratton left the band in 1969, Dennis Provisor was brought in on guitar and Terry Furlong joined the band on keyboards. By 1971, The Grass Roots enlarged to a six piece combo with Brian Naughton as additional lead guitarist. Other line-up changes occurred in 1972 and 1974.
While the band performed the song in concert, there is no indication that The Grass Roots per se played the instruments on the actual recording. While the band provided the vocals, instrumentation was supplied by The Wrecking Crew. The legendary bass line, which was later played live by Rob Grill, was actually performed by Carole Kaye who contributed to hundreds of recordings.
“Midnight Confessions” charted at #5 during the summer of 1968 and was their only single to be certified gold.