Question: Who is the lead vocalist for the band who's debut album was entitled "On the Rocks?"
Context: Difference United is an indie Christian pop-rock band from Nashville, Tennessee.  The band was founded in 2006 by Aaron Miller, the principal composer and keyboard player and features Rebecca Wade as lead vocalist.  The group released its debut album entitled "Dream Again" in 2008, and its second album release "New Day" in 2014. Teenage Time Killers is a rock supergroup formed in February 2014 by My Ruin guitarist Mick Murphy and Corrosion of Conformity drummer Reed Mullin.  Guests include Dave Grohl (former drummer of Nirvana and current lead singer of the Foo Fighters), Stephen O'Malley (of Sunn O))) and Burning Witch), Corey Taylor (lead vocalist of Slipknot and founder of Stone Sour), Nick Oliveri (former bassist for Queens of the Stone Age, currently with The Dwarves), Jello Biafra (former front man of Dead Kennedys, currently with The Guantanamo School Of Medicine), Matt Skiba (vocalist and guitarist of Alkaline Trio and current guitarist and vocalist for Blink-182) and Randy Blythe (lead vocalist of Lamb of God).  The band's name refers to the Rudimentary Peni song of the same name.  Their debut album, titled "Teenage Time Killers: Greatest Hits Vol.  1", was recorded at Grohl's Studio 606, and was released July 28, 2015.  through Rise Records, with whom the group signed in December 2014.  The album contains a version of John Cleese's poem "Ode to Hannity," sung by Biafra.  Mullin has stated that he isn't sure whether the group will tour, but that they are considering a live appearance on a show such as "Jimmy Kimmel Live! ", possibly with "three or four singers [coming] out at a time". Mike Mattison is an American musician and vocalist of the Grammy Award-winning blues rock/soul group, the Tedeschi Trucks Band, as well as lead vocalist and co-founder of the blues rock trio Scrapomatic.  Mattison's vocal sound has been described as "strong," with an "expressive blues voice".  As lead vocalist of Scrapomatic, he picked up a nomination for Minnesota Music Awards best male vocalist, and both he and co-founder Paul Olsen were also nominated for best R&B Group.  Mattison was previously the lead vocalist of the Grammy Award winning Derek Trucks Band and has been a main songwriter of all three bands.  He is also an active essayist who publishes on music and poetry.  Since 2013 Mattison and Ernest Suarez have edited “Hot Rocks: Songs and Verse,” an ongoing feature in Five Points: A Journal of Literature and Art. The discography of British singer and songwriter Neon Hitch.  Neon's debut digital single "Get Over U" was released in February 2011.  Hitch then released her single "Bad Dog", which was intended to be the lead single from her debut album.  Later in 2011, she was featured on Gym Class Heroes' song "Ass Back Home".  In 2012, Neon Hitch released "Fuck U Betta" and Gold" featuring Tyga, her official first and second singles respectively.  Both songs peaked at number one on the "Billboard" Dance/Club Play chart.  Neon then debuted an EP entitled "Happy Neon" in January 2013, which was released online for free.  In October 2013, Neon announced that her debut album "Beg, Borrow & Steal" had been scrapped and she would release a new album that had more of her soul in it.  In January 2014, Neon released the mixtape "301 to Paradise" for free.  In May 2014, it was announced that Hitch had parted ways with her label Warner Bros. and was gearing up to releasing her new debut album "Eleutheromaniac"; she also released "Happy Neon" and "301 to Paradise" to digital retailers independently in the same month.  She premiered the lead single of "Eleutheromaniac", "Yard Sale", in August 2014.  In January 2015, Neon released "Sparks" as the first single from the album.  In March 2015, Hitch released the EP "24:00" for free.  In 2016, it was announced that Hitch had changed the name of her debut album to "Anarchy", which was released on July 22, 2016.  The lead single from the album, "Please", was released on July 8, 2016.  The album did not contain any of the singles intended to be on "Eluetheromaniac", but included a promomotional single she released in 2015, "Freedom". The American rock band Paramore has released five studio albums, three extended plays, two live albums, eighteen singles, one video album, and nineteen music videos.  The band was formed in Franklin, Tennessee, in 2004 by lead vocalist Hayley Williams with guitarists Josh Farro and Taylor York, bassist Jeremy Davis, and drummer Zac Farro.  In 2005, Paramore signed with the New York City-based Fueled by Ramen and released their debut album entitled "All We Know Is Falling".  Three singles were released from the album, but none of them charted.  The album did not chart in the "Billboard" 200 either, although it peaked at number thirty in the "Billboard" Top Heatseekers.  "All We Know Is Falling" received Gold certification in the United Kingdom and in July 2014 the RIAA certified the album Gold in the United States. Midland is an American country music group consisting of Mark Wystrach (lead vocals), Cameron Duddy (bass guitar, background vocals), and Jess Carson (lead guitar, background vocals).  Their debut single, "Drinkin' Problem", reached the top 5 on the "Billboard" Country Airplay chart.  The album's second single, "Make a Little" released to country radio on September 25, 2017. Scottish singer-songwriter Jimmy Somerville entered the music industry as the lead vocalist of the British pop band Bronski Beat.  The trio, originally co-founded along with Steve Bronski and Larry Steinbachek, scored an international success with their debut single entitled "Smalltown Boy".  The composition topped the singles charts in Italy, the Netherlands, as well the Hot Dance Club Play list in the United States.  Having reached the top-ten in a number of other countries in addition, such as Canada, the Switzerland, Germany, France, Ireland, New Zealand and the UK (at number three), the single was certified Gold and Silver by the Canadian Recording Industry Association (CRIA) and British Phonographic Industry (BPI).  The band's debut album "The Age of Consent" (1984), released through London Records, matched the sales of the first single.  While peaking at number four in England and number 36 in the States, the set received two platinum certifications from both the CRIA and BPI. "Drinkin' Problem" is the debut single of the American country music band Midland.  It was released on July 27 2017, as the first single from their upcoming debut album "On the Rocks".  The band members wrote the song with Josh Osborne and Shane McAnally, the latter of whom also produced it. Tremonti is an American heavy metal band founded and fronted by lead vocalist and guitarist Mark Tremonti, best known as the guitarist of the American rock band Creed, and the lead guitarist of American rock band Alter Bridge.  The band also consists of rhythm guitarist Eric Friedman and drummer Garrett Whitlock.  Bassist Wolfgang Van Halen was in the band between 2012 to 2017.  What originally started as a Mark Tremonti solo project evolved into a fully fledged band after the release of the group's first album, "All I Was", in July 2012.  That album featured Tremonti himself playing guitar in addition to lead vocals, and the band was joined by Tremonti's Creed and Alter Bridge bandmate Brian Marshall playing bass on tour until his departure later that year.  He was replaced by Van Halen bassist Wolfgang Van Halen, who contributed to the band's second album, "Cauterize", which was released on June 9, 2015.  The band also has another album, entitled "Dust", in April 2016, serving as a continuation to "Cauterize". Me Vs Hero were a British rock band from Blackpool.  The band consisted of lead vocalist Sam Thompson, bassist Michael Booth, guitarists Bobby Pook and Grant Berry and drummer Simon Smith.  The band were known for their inclusion of hardcore punk and heavy metal influences to complement their pop punk sound.  The band their self-titled EP in January 2009, followed by a second EP release entitled "This One's for Our Friend" in December 2009, and the following year the band released their debut album "Days That Shape Our Lives".
Answer: Mark Wystrach