For 1995's Friday soundtrack, Dre provided a rare one-off single, the catchy, Sequence-interpolating "Keep Their Heads Ringin'." The song ended up as a pretty massive hit, thanks in large part to its memorable chorus, which conflates heads ringing with the sound of bells. At least it probably wasn't his lyrics; "Keep Their Heads Ringin'" found Dre reaching somewhat boilerplate status. Nonetheless, the song felt huge. At this point, it was readily apparent that G-Funk had longer legs than anyone realized initially, as the public's unquenchable thirst for heavy bass and whirring synthesizers reached its popular apex.