War was a long-running funk-rock band from southern California, who was commercially viable, at least into the 1990s. Eric Burdon, formerly of The Animals, was the lead vocalist on their first hit, Spill the Wine, back in 1970, but others took the reins shortly after that.
On the Billboard 100, the very peaceful tune called Summer, which was appropriately released on June 21, 1976, debuted on the chart on July 10 and spent 16 weeks there, eventually getting to #7. On the soul charts, it also started moving on July 10, and spent 14 weeks, reaching #4. It was declared a gold record, selling over 500,000 units.