Question: The lead vocalist for the group The Crabb Family worked with who on the production of the album released on September 18, 2015?

full_context: Document 1: Jason Perry (singer): Jason Perry (born 29 December 1969) is a Grammy award-winning English record producer and singer/songwriter. He is the lead vocalist of the Suffolk based band ’A’. He has an identical twin brother, Adam, and an older brother, Giles, both of whom are also members of the band. Recently, Perry has produced albums by Greywind, Fatherson, Don Broco, Molotov, McBusted, Matthew P, Ivyrise, The Blackout, Kids in Glass Houses, Get Cape. Wear Cape. Fly, Futures, Matt Willis and McFly.
Document 2: On the Rocks (Midland album): The album features 13 songs, including the singles "Drinkin' Problem" and "Make a Little". At least one band member wrote every song on the album. Josh Osborne, Shane McAnally, and Dann Huff served as producers.
Document 3: Jason Wisdom: Jason Wisdom is the former lead vocalist and bass guitarist for the Christian Progressive death metal band Becoming the Archetype signed to Solid State Records and Century Media Records (Europe) formed in 1999 in Dacula, Georgia. Though he was born and raised in a Christian home, he states that he was never committed to Christianity until high school. He considers his music as a form of ministry, but wishes to avoid a "preachy" stereotype. His influences include Extol, Living Sacrifice, and Mortification among others. Wisdom is an avid fan of metal music, and Christian metal in particular. He notes that even though his music is Christian metal, many of his fans are not Christians and are many times the ones who defend his music. Wisdom left the band in late November 2011 to take care of his family. Though current 7 Horns 7 Eyes frontman, JJ Polachek, tried out, Wisdom was replaced by former live fill in, Chris McCane. He has recently started a solo project titled Death Therapy, which features no Guitars. He currently works for RYFO, a company that helps musicians with places to stay, meals and other such things.
Document 4: Jason Crabb: Jason Douglas Crabb (born March 3, 1977) is a Christian music singer and musician. He has been the lead vocalist for the group The Crabb Family.
Document 5: Roadrunner United: Roadrunner United was a project organized by the heavy metal record label Roadrunner Records to celebrate its 25th anniversary. It culminated in an album released worldwide on October 11, 2005, entitled "The All-Star Sessions". Four "team captains" were chosen to lead 57 artists from 45 past and present Roadrunner bands, and produce and oversee the album's 18 tracks: then (now former) Slipknot drummer Joey Jordison, Trivium frontman and guitarist Matt Heafy, Fear Factory guitarist Dino Cazares, and Machine Head frontman and guitarist Robb Flynn. The unprecedented project was the brainchild of Roadrunner UK General Manager Mark Palmer and Roadrunner USA VP of A&R Monte Conner. The album project was coordinated by Lora Richardson and was mixed by Colin Richardson and Andy Sneap. "The All-Star Sessions" spawned one single and music video ("The End"). The DVD included with the CD purchase is a documentary of the "Making Of" the songs. It features the sessions of the four team captains making their songs.
Document 6: Open Heaven / River Wild: Open Heaven / River Wild (stylised as OPEN HEAVEN / River Wild) is the 24th live album of Hillsong Worship, which consists of several worship pastors from Australian church Hillsong Church. The album was recorded during the 2015 Hillsong Conference at the Sydney SuperDome (currently named the Qudos Bank Arena) from 29 June until 3 July 2015 and was released on 16 October 2015, under Hillsong Music, Sparrow Records and Capitol Christian Music Group; this marks the first time the church's annual worship album was recorded entirely during the conference, as opposed to the annual July releases that coincide with the event. Michael Guy Chislett oversaw production of the album, while Hillsong senior pastor Brian Houston and his son, worship leader Joel Houston, served as executive producers.
Document 7: Jason Wade: Jason Michael Wade (born July 5, 1980 in Camarillo, California) is an American singer, songwriter, the lead vocalist, main songwriter, and guitarist of the American alternative rock band Lifehouse.
Document 8: Stephen Christian: Stephen Christian is an American singer and songwriter best known as the former lead vocalist of the alternative rock band Anberlin, as well as the vocalist of his acoustic side-project Anchor & Braille. He and his bandmates started Anberlin in 2002, after the demise of their previous group, known as SaGoh 24/7. He is one of the main songwriters for Anberlin along with Joseph Milligan, and with the band has released seven albums, the final being in 2014. Many of the albums in the Anberlin discography have peaked in the top ten on various "Billboard" charts.
Document 9: All Things Work Together: All Things Work Together is the eighth studio album by American Christian hip hop artist Lecrae, released on September 22, 2017, through Reach Records and Columbia Records, also making it his first major label release. The album features appearances from Tori Kelly, Ty Dolla $ign, 1K Phew, Kierra Sheard, Taylor Hill, Aha Gazelle, Jawan Harris and Verse Simmonds.
Document 10: Before This World: Before This World is the seventeenth studio album by American singer-songwriter James Taylor. It was released on June 15, 2015. It is Taylor's first new studio album of original material since "October Road" (2002). He recorded the album in a barn on his property in western Massachusetts with Steve Gadd on drums and Jimmy Johnson on bass. In April 2015, he announced a short U.S. tour running from July 2 to August 6 to promote the album.
Document 11: All That Is Within Me: All That Is Within Me is the fifth studio album by American Christian rock band MercyMe. Produced by Brown Bannister, it was released on November 20, 2007 through INO Records. The album, intended by the band to be a worship album split between covers and original songs, was recorded following the band's tour with Audio Adrenaline in promotion of their previous studio album "Coming Up to Breathe" (2006). Although the band intended to write material for a new album during the tour, they had only written one song by the time they entered their recording studio, Cider Mountain Studio in Athol, Idaho. The band wrote so many songs at the studio that they decided not to include any cover songs; all of the songs on the album but were written or co-written by the band. The album was described as being a rock and worship album, being aimed directly at a Christian audience.
Document 12: Jason Eady: Jason Eady is an American country music singer and guitarist. He is regarded as an important figure in the subgenre of Texas country music, a form of "classic country" bent upon returning the music to its historic singer-songwriter roots.
Document 13: Roads (album): Roads is the debut studio album by American recording artist Chris Mann, released on October 30, 2012, by Universal Republic. Mann participated in the season two of the singing reality show "The Voice", ultimately placing fourth, but being the first of the second season to release an album. The album was produced by Keith Thomas, Marco Marinangeli, Marius de Vries, Walter Afanasieff and others.
Document 14: Kevin Max: Kevin Max (born August 17, 1967) is an American singer, songwriter, and poet. He is best known for being a member of the Christian pop group DC Talk. As a solo artist following the 2001 dissolution of DC Talk, he has recorded eight full-length studio albums, one Christmas album, and seven EPs, with one releasing in July. From 2012 until 2014, he was the lead singer of the band Audio Adrenaline.
Document 15: Whatever the Road: Whatever the Road is a studio album by Jason Crabb. Reunion Records released the album on September 18, 2015. Crabb worked with Jason Ingram and Paul Mabury, in the production of this album.
ground_truth: Jason Ingram and Paul Mabury