A Cruel Angel's Thesis was released in 1995 as the opening theme for Neon Genesis Evangelion, performed by Yoko Takahashi and written for the TV anime's debut. As Evangelion became a defining series of its era, the song outlived the broadcast and became shorthand for classic anime itself. Clips circulate in edits, rankings and memes alongside other instantly recognisable themes like Giorno's Theme, and fans use this short excerpt as an immediate signal of drama, nostalgia and a serious anime moment arriving.