Complex sentence: Barney is shown on a boat emerging from the mist at Moe's bar, dressed up like the Phantom from Andrew Lloyd Webber's 1986 musical, singing how Moe's beer is great.
Split into simpler sentences: Barney is shown on a boat emerging from the mist at Moe's bar. He is dressed up like the Phantom from Andrew Lloyd Webber's 1986 musical and sings about how Moe's beer is great.