Def Leppard's "The Early Years" is a comprehensive journey through the band's formative period, offering a deep dive into their glam metal and glam rock roots. Released on March 20, 2020, under UMC (Universal Music Catalogue), this expansive collection spans over three hours and twenty-four minutes, featuring remastered studio tracks, live performances, early versions, and rare singles. Fans will appreciate the evolution of Def Leppard's sound, from their raw early recordings to their polished live performances captured at the New Theatre Oxford in 1979. The album includes iconic tracks like "Rock Brigade," "Hello America," and "Bringin' On The Heartbreak," alongside lesser-known gems and alternate versions that showcase the band's versatility and creativity. Whether you're a longtime fan or a newcomer to Def Leppard's music, "The Early Years" provides an essential look at the foundation of one of rock's most enduring bands.