Question: Who is the lead singer of the band with debut album "Bad Blood"?
Context: Haunt is an EP by English indie pop band Bastille.  It was released exclusively to the United States on May 2013 digitally and July 2013 physically.  It features three songs from their debut album "Bad Blood".  It also features a demo track, the title track of the EP, that was originally the B-side to the "Bad Blood" single.  The EP peaked at #104 in the "Billboard" 200 and number one in the Top Heatseekers chart. Bad Blood (stylised as "BΔD BLOOD") is the debut studio album by British band Bastille.  It was released on 4 March 2013 in the United Kingdom, and on 3 September 2013 in the United States, and features the singles "Overjoyed", "Bad Blood", "Flaws", "Pompeii", "Laura Palmer" and "Things We Lost in the Fire".  The album was recorded in London and produced by lead-singer, Dan Smith, and Mark Crew. Daniel Campbell "Dan" Smith (born 14 July 1986) is a British singer-songwriter and record producer.  He is the lead singer, primary songwriter.  and founder of the British rock band Bastille.  The band formed in 2010 and gained mass popularity in 2013 when the song "Pompeii" was released.  The band released their second album, "Wild World" in September 2016. . "Bad Blood" is a song by British band Bastille and the second single from their debut studio album of the same name.  It was released as a single in the United Kingdom on 19 August 2012.  Both "Bad Blood" and its B-side track "Haunt (Demo)" were included on their 2013 "Haunt EP", along with "Pompeii" and "Overjoyed". Laura Palmer EP is the debut EP by English indie pop band Bastille, self-released in November 2011 as a digital download and on CD.  It features four of Bastille's earliest songs, which were later included on their debut album "Bad Blood".  It followed their debut single "Flaws" / "Icarus", which was released on 4 July 2011. "Overjoyed" is a song by British band Bastille.  It was released on 27 April 2012 as their first official single release through Virgin Records.  It was the first single to be taken from their debut studio album "Bad Blood".  The track was also included in both their 2011 self-release the "Laura Palmer EP" and their 2013 US-only release the "Haunt EP".  Due to a release with little promotion, the track failed to chart in the United Kingdom.  It is their only non-charting single from the album. "Flaws" is a song by British band Bastille.  It is the third single from their debut studio album "Bad Blood".  The song was the band's debut single; it was first released in 2011 through the independent label Young and Lost Club as a double A-side 7-inch single with their song "Icarus".  The single was later re-released through Virgin Records as a digital download on 21 October 2012, featuring remixes and new B-side track "Durban Skies", peaking at number 21 on the UK Singles Chart on this occasion.  "Flaws" was released for a third time on 3 March 2014, but did not improve upon its previous peak. "Of the Night" is a song by British indie rock band Bastille, released on 11 October 2013 as the lead single from "All This Bad Blood" (2013), a reissue of their debut studio album "Bad Blood" (2013).  The song debuted at number two on the UK Singles Chart, and has also charted in several other countries. "Oblivion" is a song by British band Bastille from their 2013 album "Bad Blood".  It was released digitally in the UK on 5 September 2014 as the eighth overall and final single from the album.  A limited edition 7-inch vinyl edition of the single, featuring the previously unreleased track "bad_news" as the B-side, was also released on 8 September. "Pompeii" is a song by English indie rock band Bastille.  It is the fourth single from their debut studio album "Bad Blood" and the first to get major airplay and promotion.  The song was released as the album's fourth single on 12 January 2013.  It reached number 2 in the UK Singles Chart, number 4 in Australian ARIA Chart, and number 5 on the US "Billboard" Hot 100 and number one on the Alternative Songs chart.  Furthermore, according to the Official Charts Company, it was the UK's most streamed song up to June 2014.
Answer: Daniel Campbell "Dan" Smith