Question: How many number one singles as a solo artist does Mark Bryan's former band mate have?
Context: The Honeydrippers: Volume One is an EP released on 24 September 1984, by a band led by rock singer Robert Plant.  The project originated when Atlantic Records president Ahmet Ertegün wanted to record an album of his favourite songs from the 1950s.  Plant was chosen because Ertegün had seen his pick-up band the Honeydrippers performing 1950s standards.  Included in the band were Chic front man Nile Rodgers, and former Yardbirds guitarists Jeff Beck and Jimmy Page—the latter was also Plant's former band mate in Led Zeppelin. Nicholas Caruana aka Nicky Bomba (born 7 September 1963, Malta) is an Australian musician and singer-songwriter.  He is the leader of the ARIA Award-winning Melbourne Ska Orchestra, frontman of his band, Bomba, as well as the former drummer and percussionist of John Butler Trio (2003–04, 2009–13).  He has performed in other acts and as a solo artist.  His youngest sister, Danielle Caruana, (who performs as Mama Kin), is married to his former band mate, John Butler.  His older brother, Michael Caruana, is a member of Bomba and of Mama Kin's backing band. American singer Darius Rucker gained fame as the lead singer of the American roots rock band Hootie & the Blowfish before emerging as a major country music singer in 2008.  As a solo artist, his discography comprises five studio albums, including four for Capitol Nashville.  His singles since 2008 have all been released to the country music format, where he has seven number-one singles: "Don't Think I Don't Think About It", "It Won't Be Like This for Long", "Alright", "Come Back Song", "This", "Wagon Wheel", and "If I Told You". Gary Barlow OBE (born 20 January 1971) is an English singer, songwriter and record producer.  He is frontman and lead vocalist of British pop-group Take That.  Barlow also served as head judge of "The X Factor UK" from 2011 to 2013 and "Let It Shine" in 2017.  Barlow is one of Britain's most successful songwriters, having written fourteen number one singles and twenty-four top 10 hits.  He has had three number one singles, six top 10 singles and two number one albums as a solo artist, and has had seventeen top 5 hits, twelve number one singles and seven number one albums with Take That.  He is also a six-time recipient of the Ivor Novello Award and has sold over 50 million records worldwide. Joe Musten is an American musician who started his musical career in 1999.  He formed Beloved, Advent, Your Son Is Dead, and Torn.  In 2008, he joined the band The Almost after former drummer Kenny Bozich quit the band.  Joe was featured in the December 2009 issue of "DRUM Magazine" alongside former band mate Aaron Gillespie.  He formed the band, Torn, and was featured on the self-titled debut album, but was un-credited. Hootie & the Blowfish is an American alternative rock band that was formed in Columbia, South Carolina, in 1986 by Darius Rucker, Mark Bryan, Dean Felber, and Jim Sonefeld.  As of July 2010, the band had charted 16 singles on various "Billboard" singles charts and recorded five studio albums.  Their 1994 debut album, "Cracked Rear View", is the 16th-best-selling album of all time in the US, and was certified platinum 16 times.  They have sold over 21 million albums in the United States.  The group was also popular in Canada, having three number-one singles in the country. Lucky is the second solo album by Marty Balin.  It was released in 1983 on EMI America Records.  The album did not fare as well as his previous one, and only rose to #156 on the "Billboard" chart.  As a subtle tribute to Balin's friend and former band mate Jack Casady, he recorded a cover of "Heart of Stone," an original written by Brian Marnell from Jack's new wave group SVT. Peter Wichers is best known as one of the founding members of Swedish melodic death metal band, Soilwork.  From 1995 until late 2005, when he announced his departure from the band, he was known as the lead guitarist and also a songwriter, especially on their "Stabbing the Drama" album., He rejoined Soilwork in 2008 and played on 2010s The Panic Broadcast and in June 2012 he quit Soilwork for the second time.  After leaving Soilwork, he filled in for Adam Dutkiewicz when he was injured on Killswitch Engage's European tour.  More recently, he has collaborated with singers from across the melodic death metal genre including Anders Fridén, former band mate Björn "Speed" Strid and John Bush (vocalist of Anthrax) to make a CD much in the same style as "Roadrunner United", entitled "Nuclear Blast All-Stars".  He also co-wrote Warrel Dane's solo record "Praises to the War Machine". Nasty Suicide (born Jan-Markus Stenfors on 27 February 1963) is the ex-rhythm, lead guitarist and one of the founding members of Hanoi Rocks between 1979–1985.  Hanoi Rocks was a Finnish rock band that combined elements of punk, glam rock, rock and roll, and blues.  Before his tenure in Hanoi Rocks, Suicide played guitar in a Finnish punk band called Briard in the late 1970s.  Suicide replaced Andy McCoy in Briard after McCoy joined Pelle Miljoona Oy.  After the breakup of Hanoi Rocks in 1985, he and his former band mate Andy McCoy recorded an acoustic album under the name The Suicide Twins which was released in 1986 and was titled "Silver Missiles and Nightingales".  At the same time McCoy and Suicide started The Cherry Bombz, which included Timo Caltio on bass (later replaced by Dave Tregenna), Terry Chimes on drums and singer Anita Chellemah.  The Cherry Bombz released two EPs: "The Cherry Bombz" (1985) and "House Of Ecstasy" (1986) as well as a live album, "Coming Down Slow" (1986).  After The Cherry Bombz Nasty went on to form his own band Cheap and Nasty, from 1990 to 1994. Kill the Lights is the fifth studio album by American country music artist Luke Bryan.  It was released on August 7, 2015, by Capitol Nashville.  The album's lead single, "Kick the Dust Up", was released to country radio on May 19, 2015. " Strip It Down" was released as the second single from the album on August 4, 2015.  The album's third single, "Home Alone Tonight", was released to country radio on November 23, 2015.  The album's fourth single, "Huntin', Fishin' and Lovin' Every Day" released to country radio on March 14, 2016.  The album's fifth single, "Move" released to country radio on July 25, 2016.  All five singles reached number one on the "Billboard" Country Airplay chart, making Bryan the first country music artist ever to have five number one singles from two albums apiece.  In November 2016, the album's sixth and final single, "Fast", was sent to country radio.  With "Fast" also reaching number one in April 2017, Bryan became the first artist in the chart's history to achieve six number one singles from one album.
Answer: seven number-one singles