What makes Foolin' by Def Leppard notable?

The song 'Foolin'' became a significant hit for Def Leppard, reaching No. 28 on the Billboard Hot 100 chart, contributing to the band's rise to fame. Its popularity helped cement the band's status as leading figures in the glam metal movement of the early 1980s. Released as part of Def Leppard's breakthrough album 'Pyromania', 'Foolin'' arrived during a pivotal moment in their career. This track solidified their presence in the mainstream rock scene, following the massive success of earlier hits like 'Photograph' and 'Rock of Ages'.