In 1966, the Blackwoods teamed up with Porter Wagoner to record a country influenced gospel album called "Grand Old Gospel". It won a Grammy Award for Best Sacred Performance (Musical) and was the first of three albums the Blackwoods recorded with Wagoner. 1967's "More Grand Old Gospel" won a Grammy for Best Gospel Performance, along with 1969's "In Gospel Country". Wagoner performed with the Blackwoods for years and were guests at the Ryman Auditorium multiple times. In 1969, James Blackwood's oldest son, James "Jimmy" Blackwood, Jr., took over as the main lead singer for the group. Jimmy had been a member of the Junior Blackwood Brothers and the Stamps Quartet. They won another Grammy in 1973 for their project "L-O-V-E" on the RCA Camden label and then again in 1974 for "Release Me From My Sin". The group had 5-7 members at any given time with James Sr. and James Jr. sharing the lead, Bill Shaw and Cecil Blackwood on tenor and baritone, respectively, and John Hall and Conley "London" Parris taking over bass. The 1970s and 1980s lineup with Pat Hoffmaster, Jimmy Blackwood, Cecil Blackwood, Ken Turner and Tommy Fairchild had the Blackwood Brothers' biggest hit with "Learning To Lean". At the 22nd Annual Grammy Awards in 1980 they won another Grammy for "Lift Up the Name of Jesus" in the Grammy Award for Best Gospel Performance, Traditional category.