Question: Download Festival is a British rock festival, held annually at Donington Park in Leicestershire, England, since 2003, it's the  most popular British summer rock and heavy metal festival and has hosted some of the genres' biggest names, including which rock band formed in England in 1978 by David Coverdale, after his departure from his previous band Deep Purple?  
Context: Valley Rock Festival (also known as VRF and Ansan Valley Rock Festival) is held annually on the last weekend of July.  Sharing many artists, the festival is arranged by 9 Ent, which is Smash Corporation, and in close coordination with Japanese Fuji Rock Festival.  In 2009 on the festival’s maiden year, there were some controversies regarding the festival's split from neighboring Pentaport Rock Festival.  However the festival’s sponsor changed to Mnet media in 2010 and CJ E&M in 2011.  VRF has been successful and has grown into one of the South Korea’s biggest music festivals. Download Festival is a British rock festival, held annually at Donington Park in Leicestershire, England, since 2003.  It is the most popular British summer rock and heavy metal festival and has hosted some of the genres' biggest names, including Saxon, Black Sabbath, Slipknot, Metallica, Iron Maiden, Motörhead, Aerosmith, AC/DC, Def Leppard, Kiss, Judas Priest, Status Quo, Mötley Crüe, Journey, ZZ Top, Whitesnake, Thin Lizzy, and Guns N' Roses.  The 2015 festival featured massive technological surveillance by police in conjunction with festival organizers Live Nation UK.  RFID wristbands and facial recognition technology was used to compare visual scans of attendees against a European criminal database. Whitesnake are a British hard rock band originally from Middlesbrough.  Formed in 1978, initially as vocalist David Coverdale's backing band, the group originally featured guitarists Micky Moody and Bernie Marsden, bassist Neil Murray, drummer Dave Dowle and keyboardist Peter Solley, who released their first EP "Snakebite" in 1978.  Solley was replaced later in the year by Coverdale's former Deep Purple bandmate Jon Lord, while the group's drummer Ian Paice replaced Dowle in 1979 after the release of "Lovehunter".  Whitesnake was briefly put on hiatus in 1982, before returning later in the year with Mel Galley, Colin Hodgkinson and Cozy Powell in place of Marsden, Murray and Paice.  Shortly after the recording of "Slide It In", Hodgkinson was replaced by the returning Murray, while John Sykes also joined the band; both new members featured on the US reissue of the album, which featured re-recorded tracks.  Both Galley and Lord left the band shortly after the album's release. David Coverdale (born 22 September 1951) is an English rock singer best known for his work with Whitesnake, a hard rock band he founded in 1978.  Before Whitesnake, Coverdale was the lead singer of Deep Purple from 1973 to 1976, after which he established his solo career.  A collaboration with Jimmy Page resulted in a 1993 album that was a commercial and critical success.  In 2016, Coverdale was inducted into the Rock and Roll Hall of Fame as a member of Deep Purple, giving one of the band's induction speeches. Live at Donington is a live album by the English heavy metal band Iron Maiden, documenting their second headlining appearance at the Monsters of Rock festival at Donington Park, a motorsport circuit located near Castle Donington.  The concert took place on 22 August 1992 during the Fear of the Dark Tour in front of a crowd of almost 80,000.  It was originally only released as a limited edition triple vinyl set, with a 2 disc CD release only in Brazil, Canada, Holland, Italy, South Korea, UK and Japan, but became a regular part of the band's CD catalogue with the 1998 reissues.  It was also issued on VHS under the title "Donington Live 1992". Whitesnake are a rock band formed in England in 1978 by David Coverdale, after his departure from his previous band Deep Purple.  Their early material has been compared by critics to the blues rock of Deep Purple, but they slowly began moving toward a more commercially accessible rock style.  By the turn of the decade, the band's commercial fortunes changed and they released a string of UK top 10 albums, "Ready an' Willing" (1980), "Come an' Get It" (1981), "Saints & Sinners" (1982) and "Slide It In" (1984), the last of which was their first to chart in the US and is certified 2x platinum. Come Taste The Band is the tenth studio album by the English rock band Deep Purple, originally released in October 1975.  It was co-produced and engineered by the band and longtime associate Martin Birch.  It is the only Deep Purple studio record featuring Tommy Bolin, who replaced Ritchie Blackmore on guitar and is also the final of three albums to feature Glenn Hughes on bass and David Coverdale on lead vocals, before Coverdale later left to form Whitesnake. "Mistreated" is a song by the British rock band Deep Purple taken from their 1974 album "Burn".  The song was written by the band's guitarist Ritchie Blackmore and new vocalist David Coverdale, who, along with new bassist Glenn Hughes, brought new blues and funk elements to the band. Norway Rock Festival, formerly known as Kvinesdal Rock Festival, is a rock and metal festival held annually in Kvinesdal, Norway since 2006.  The 2007 edition took place on July 12 – July 15.  At the 2008 festival, two people were found dead near to a bus.  Initial reports suspect carbon monoxide poisoning as being the cause of death.  The 2009 edition took place July 9 – July 12. Burn is the eighth studio album by the English hard rock band Deep Purple, released in February 1974.  This was the first Deep Purple album to feature then-unknown David Coverdale on vocals and Glenn Hughes from Trapeze on bass and vocals.
Answer: Whitesnake