Diesel was no stranger to mainstream success by the time he released his second solo album, 1992's Hepfidelity. After spending much of the '80s enmeshed in musical endeavors like collaborating with Jimmy Barnes, the musician (born Mark Lizotte) nabbed commercial acclaim and an ARIA Award for the hit-filled 1989 self-titled album from his own band, Johnny Diesel & The Injectors. Hepfidelity arrived after he went solo and shortened his onstage moniker from Johnny Diesel to just Diesel. Coproduced by Don Gehman and Terry Manning—known for their work with John Cougar Mellencamp and Stax Records, respectively—the album finds Diesel building on his pub-rock foundations to incorporate broader influences. Bluesy guitars dominate the heavy “Love Junk,” while peppy horns dart throughout the soul-inspired “Come To Me.” Hepfidelity shines even more when Diesel leans into his singer/songwriter roots, with the easygoing, acoustic-based “Tip Of My Tongue” and Black Crowes-esque rocker “One More Time” lending an introspective vibe. The album ended up spending four weeks at No. 1 on the ARIA Albums Chart and was certified triple platinum, setting Diesel up for more solo success as the '90s progressed.