The progressive-rock supergroup Emerson, Lake and Palmer were never really notable for their restraint, either in the complexity and execution of their music or in their over-the-top live shows.
For a time, Emerson, Lake & Palmer ruled the progressive rock genre, traveling with some of the most epic stage productions that had ever been attempted in the time period. Doing so often brought critical malign and in the case of an ill-fated tour with an orchestra, financial devastation to the group.