Legendary progressive rock supergroup U.K. have embarked upon their final world tour, and are playing their last five shows in America and Japan. Original vocalist/ bassist John Wetton and original keyboardist/electric-violinist Eddie Jobson will be joined by Alex Machacek on guitar and Mike Mangini on drums. U.K. have been an integral and influential component of progressive music, and their musical energy is beyond electric, especially live. You can catch them April 23 at World Cafe Live in Philadelphia and April 24 at Highline Ballroom in New York City.