Warren has 3 Europe concerts.

Europe is a Swedish rock band formed in Upplands Väsby in 1979, by vocalist Joey Tempest, guitarist John Norum, bass guitarist Peter Olsson, and drummer Tony Reno. They got a major breakthrough in Sweden in 1982 by winning the televised competition "Rock-SM" (Swedish Rock Championships) It was the first time this competition was held, and Europe became a larger success than the competition itself.