Van Halen's 1986 album "5150" marked the band's successful reinvention after original frontman David Lee Roth departed, with new singer Sammy Hagar helping them not only match but surpass their previous commercial peak. The change addressed widespread fan uncertainty about whether the band could survive Roth's exit, and it settled the question decisively, going on to become one of the biggest-selling albums of their career and cementing the "Van Hagar" era.

Roth left in the mid-1980s amid creative and personal clashes with guitarist Eddie Van Halen, prompting the band to briefly consider Scandal's Patti Smyth before settling on Hagar, previously of Montrose and known for the solo hit "I Can't Drive 55". Recording began in November 1985 with a new production team, and freed from Roth's resistance to synthesisers, Eddie Van Halen leaned further into that sound, producing power ballads such as "Dreams" and "Love Walks In". The album yielded three Top 25 singles, sold six times platinum, and gave Van Halen their first ever US number one album, while also sparking an enduring debate among fans over which era of the band was superior.