Final answer:
Weezer's hit "Buddy Holly" merges hip-hop slang with 1950s references. The song reflects the continuous impact of varied music genres across decades.
Step-by-step explanation:
The group whose Top 40 hit "Buddy Holly" combines slang associated with hip-hop and references from the 1950s is Weezer. This song brilliantly fuses modern linguistic stylings with nostalgia, evoking the spirit of the rock 'n' roll era and paying homage to one of its icons, Buddy Holly. The blend of historical context with contemporary sounds is a testament to the enduring influence of diverse musical genres, as seen with the transition from the explosive growth of rock and roll in the 50s led by artists like Chuck Berry and Buddy Holly to the evolution of hip-hop in the 80s from artists including Chuck D of Public Enemy.