Guitarist/singer/songwriter Bob Mould was initially a member of Hüsker Dü, one of the most influential American bands of the '80s. Hüsker Dü was a post-hardcore punk band that helped define the sound and ideals of alternative rock. After Hüsker Dü broke up, Mould signed a solo contract with Virgin Records in 1988. The following year he released his first solo album, Workbook, which represented a major shift in sonic direction. Workbook was an introspective collection, featuring keyboards, acoustic guitars, and even strings. The album received excellent reviews and spent 14 weeks on the charts, peaking at 127; "See a Little Light" became a Top Ten modern rock hit. Mould returned to loud, guitar-driven rock on his second solo album, 1990's Black Sheets of Rain. Featuring the Top Ten modern rock hit "It's Too Late," Black Sheets of Rain received mixed reviews.