Sugarhill Gang’s breakthrough is known for introducing a wide audience to hip-hop; it was the first rap song to break the Billboard’s Top 40, peaking at No. 36 at the top of 1980. A genre forerunner that barely out-charted the likes of R&B legends the O’Jays and rock gods Led Zeppelin, “Rapper’s Delight” pretty much fits the definition of being a “random” hit by default.