In 1986, rap was still a fledgling genre largely thought of as a fleeting trend—even though multiple hip-hop singles had reached the Billboard charts and Sugar Hill Records enjoyed seven years of success. Yet the genre’s new, creative energy proved to be the saving grace of one of the biggest rock bands of all time: Aerosmith, who were all but washed by the mid ’80s, with drug issues threatening the future of the band.
When Rick Rubin approached Aerosmith’s manager about working with the buzzing rap trio Run-DMC, both sides had reservations. But the groups got into the studio and pushed out a reworked version of the band’s 11-year-old track, “Walk This Way,” in a single day. The song peaked at No. 4 on Billboard’s Hot 100, charting higher than the original, and propelled Run-DMC’s Raising Hell to become the first Platinum-selling hip-hop album.
Six months later, Beastie Boys released Licensed to Ill, their rock-inspired debut album, also produced by Rick Rubin and Russell Simmons, that has since gone Diamond. (Beastie Boys had attempted to kick off the rap-rock trend two years earlier: in 1984, Def Jam withdrew their single “Rock Hard” because of an uncleared AC/DC sample.) Two months before Licensed to Ill came out, LL Cool J’s 1986 Rubin-produced song “Rock the Bells” also made Billboard’s Top 40. Def Jam was on top.
“Walk This Way” was a win-win for Aerosmith and Run-DMC. Run-DMC got the mainstream music industry cosign they needed to transcend the underground. And Aerosmith enjoyed sustained longevity and pop-culture relevance: they released their album Permanent Vacation in 1987 (with three top-20 singles and over five million copies sold) and went on tour almost immediately. Executives and fans alike realized how powerful rap-rock was. Over the next 35 years, the two genres worked together to create career-defining material for multiple artists, and also created space for the genre-bending solo artists that are popular today.


