When did david ruffin and the temptations last play shady grove music fair in gaithersburg MD?

David Ruffin and The Temptations last performed at the Shady Grove Music Fair in Gaithersburg, MD, on July 18, 1982. This concert was part of their tour during the early 1980s, showcasing their classic hits and Ruffin's distinctive vocal style. The fair was known for hosting various artists and bands during that era.