Complex sentence: The Buddy Holly Story, the jukebox musical depicting his life, is credited as being the first of its kind, spawning a breed of jukebox shows, including the likes of "Mamma Mia!" and "We Will Rock You".
Split into simpler sentences: The Buddy Holly Story, the jukebox musical depicting his life, is credited as being the first of its kind. It spawned the genre that later included the likes of "Mamma Mia!" and "We Will Rock You".