ICQ was one of the first popular instant messaging services, launched in 1996 by the Israeli company Mirabilis, and its incoming message alert became one of the most recognisable sounds of the early internet. The short uh oh cue was heard by millions of desktop users in the late 1990s and early 2000s, long before smartphones took over messaging. As ICQ itself faded, the sound survived in soundboards, meme edits and retro compilations, where creators still use it to instantly mark a message arriving or to evoke classic online culture.