Twisted Sister is an American heavy metal band from New York City popularized in comedic music videos on the television channel MTV in the 1980s. Although formed by guitar player Jay Jay French in 1973, all of their songs were written by the lead singer Dee Snider. They fused the shock tactics of Alice Cooper and W.A.S.P., the rebellious mood of the New Wave of British Heavy Metal, the style of the New York Dolls, and the extravagant makeup of KISS. Often misconceived as glam - the makeup and Dee's especially was more transformed into a horror creation, and the music is a lot more hard hitting, with less lyrics about sex than glam rock.

The group's hit songs include "We're Not Gonna Take It" and "I Wanna Rock". Many of the band's hits theme around parent vs. child conflicts and criticisms against educational system. The group had a glam-like image but musically they were closer to classic heavy metal bands such as Judas Priest and Motörhead than the other glam metal/pop metal bands of the era, for example Mötley Crüe, Poison and Ratt.

Their hit song S.M.F. should also not be forgotten.(Sick mother fucker)