It was the No. 1 song in the country for six weeks in 1979, and it certainly left an impression. “My Sharona” by The Knack was an ode to a raven-haired teenager with a wonderfully unique name, Sharona Alperin, and a great, catchy pop tune fueled by a lot of angst and longing. It also was a song that developed an incredible life of its own, living on for decades after The Knack fell apart in the early ’80s.