After departing legendary rockers Deep Purple in 1976, frontman David Coverdale formed Whitesnake to expand Deep Purple's thundering dark blues into stadium-rocking, commercial metal. Through numerous line-up changes, Coverdale's high-pitched wail and love of power ballads produced hits like 'Still of the Night', 'Here I Go Again' and 'Ain't No Love in the Heart of the City'. 'Slide It In' (1984) was their first UK number 1 album before follow-up 'Whitesnake' (1987) became a huge global hit, selling over six million copies. Steve Vai joined briefly on guitar for ninth studio album 'Slip of the Tongue' (1989), when the band was seemingly lurching towards retirement. After occasional reformations, numerous Greatest Hits compilations and the low-key response to 'Restless Heart' (1997), they returned all guns blazing with a live DVD and their first studio album for over a decade in 2008 with 'Good to Be Bad'. They have since followed this up with 'Forevermore' (2011), 'The Purple Album' (2015) and 'Flesh & Blood' (2018) and world tours including 'The Greatest Hits' tour in 2016.