It's called Los Alzados ("Revolutionaries"). Seems that Señores Allende, Hidalgo, Aldama and the rest will never see the end of fame, and now they've got a karaoke bar named after them. Hijole!

My friend Omar and I had an hour to kill between appointments, so we dropped 10 pesos into the machine and belted out a bit of Elton John and Kiki Dee, plus a couple of cumbias.
Los Alzados is open 7 days a week at the corner of Insurgentes and Relox. Karaoke is 3 songs for 10 pesos (27¢ per song).
Have you been to Los Alzados? Did you sing? Comments, please!