The Singing Sirloin
Wikisimpsons - The Simpsons Wiki
The Singing Sirloin's distinctive feature is its waiters, who sing to their customers and serve their steaks "rare, medium, or well-sung". The restaurant also has a concealed portcullis-like barrier at the front door, which serves to both secure the restaurant during closed hours and prevent customers from leaving without paying. The lever which activates the portcullis is disguised as a "Please wait to be seated" sign.
 HistorySimpson family went to the restaurant for Marge's 34th birthday, although she was initially reluctant to go to a restaurant where the waiters sang.
The Simpsons also visited the restaurant to celebrate Bart's getting an A on an astronomy quiz at school. The waiters sang a song called "Happy First A" (to the tune of "Happy Birthday") for Bart. However, Homer's credit card was rejected. The Simpsons attempted to dine and dash, but were quickly trapped by the portcullis. In order to pay their bill, they ended up having to sing themselves, performing as a Mariachi band. The family first sang "La Bamba", and while the manager gave them high marks for their technical proficiency, he was not satisfied as their singing lacked passion. In repsonse to this critcism, Homer led the family in a rendition of "Spanish Eyes", starting the song with an impassioned vocal solo.