L.T. Smash or Lieutenant Smash is the man who recruited Bart, Milhouse, Nelson and Ralph into a boy band called the Party Posse.
History
He was secretly working with the government to recruit people to join the navy by using subliminal messages in a music video. During a concert on an aircraft carrier he learns that MAD Magazine is going to reveal the truth about the Party Posse. To stop them he sends the aircraft carrier to New York City and fires a missile at the MAD Magazine building, destroying it in the process. He is arrested for this and the Party Posse is no more.[1]
Appearances
Episode – "New Kids on the Blecch" 
Episode – "The Fool Monty" - Episode – "Homer Goes to Prep School"
- Episode – "Friend with Benefit"
- – The Simpsons Movie
- Book – Simpsons World: The Ultimate Episode Guide, Seasons 1-20
Video game – The Simpsons: Tapped Out
Trivia
- L.T. Smash is similar to Lyle Lanley from Marge vs. the Monorail and Jessica Lovejoy from Bart's Girlfriend, in that they don't appear to be evil at first, but as the episode progresses, their true twisted nature is revealed.
- L.T. Smash appeared in The Simpsons: Tapped Out as a character during Act 2 (Pop) of the Homerpalooza 2017 event.