Answer
Yes, Joe Dassin did perform at the Olympia theater in Paris. The Olympia theater is a popular venue for concerts and other performances, and it has a long history of hosting some of the world's most famous musicians. Joe Dassin was a French-American singer-songwriter who was popular in the 1960s and 1970s. He performed at the Olympia theater several times, and his performances were well-received by audiences.