Question: What job do both  Alex Greenwald and London LeGrand have in common?

full_context: Document 1: Souls of We: Souls of We (also known as George Lynch's Souls of We) is an American hard rock supergroup from Los Angeles, California, formed in 2007. The lineup consists of London LeGrand (vocals), George Lynch (guitar) and Johny Chow (bass). Since 2009, Jordan Mancino has been the band's drummer, replacing Yael.
Document 2: Alex Ebert: Alexander Michael Tahquitz "Alex" Ebert (born May 12, 1978) is an American singer-songwriter and composer. He is best known for being the lead singer and songwriter for the American bands Ima Robot and Edward Sharpe and the Magnetic Zeros. On January 12, 2014, Ebert won the Golden Globe Award for Best Original Score for his musical score to the film "All Is Lost" (2013).
Document 3: Alex Turner (musician): Alexander David "Alex" Turner (born 6 January 1986) is an English musician. He is the lead vocalist, guitarist, and principal songwriter of the English indie band Arctic Monkeys. The only child of two teachers, Turner was raised in the Sheffield suburb of High Green. Turner has also recorded with his side-project The Last Shadow Puppets and as a solo artist for the "Submarine" (2010) movie soundtrack.
Document 4: Alex Band: Alexander Max "Alex" Band (born June 8, 1981) is an American musician and singer-songwriter, best known for his work in his former band The Calling and their hit song "Wherever You Will Go", which topped the Adult Top 40 for 23 weeks.
Document 5: Ed Roland: Edgar Eugene Roland, Jr. (born August 3, 1963) is an American musician, singer-songwriter and record producer. He is best known as the lead vocalist and primary songwriter of the rock band Collective Soul. He is also active with a new project, Ed Roland and the Sweet Tea Project.
Document 6: Phantom Planet: Phantom Planet is an American rock band from Los Angeles, formed in 1994. The band consists of Alex Greenwald (vocals, rhythm guitar), Darren Robinson (lead guitar), Sam Farrar (bass guitar) and Jeff Conrad (drums). The band is best known for its track "California", which became the theme song for the TV series "The O.C.". The band featured actor Jason Schwartzman on drums until 2003 and continued to release well-received albums in his absence.
Document 7: Anthony Green (musician): Anthony Green (born April 15, 1982) is an American musician from Doylestown, Pennsylvania. He is currently the lead singer of Circa Survive and Saosin, while also maintaining a solo career. He was previously in the bands The Sound of Animals Fighting, Audience of One, Jeer at Rome, High and Driving, and Zolof the Rock and Roll Destroyer. Green is known for his high tenor vocal range.
Document 8: Slash (musician): Saul Hudson (born July 23, 1965), better known by his stage name Slash, is a British-American musician and songwriter. He is best known as the lead guitarist of the American hard rock band Guns N' Roses, with whom he achieved worldwide success in the late 1980s and early 1990s. During his later years with Guns N' Roses, Slash formed the side project Slash's Snakepit. After leaving Guns N' Roses in 1996, he co-founded the supergroup Velvet Revolver, which re-established him as a mainstream performer in the mid to late 2000s. Slash has since released three solo albums: "Slash" (2010), featuring an array of famous guest musicians, and "Apocalyptic Love" (2012) and "World on Fire" (2014), recorded with his band, Myles Kennedy and the Conspirators. He returned to Guns N' Roses in 2016, nearly 20 years after he had left.
Document 9: Let the Truth Be Known: Let the Truth Be Known is the debut album by hard rock supergroup Souls of We released on May 27, 2008 via the group's official website with the first 1000 copies, with blues musician Robert Johnson inspired album artwork, signed by members London LeGrand and George Lynch. The album was later released on November 4 of the same year, through Shrapnel Records, under the moniker "George Lynch's Souls of We" with new album artwork, a rearranged track listing as well the additional track "Nork 13". The album was self-produced in various studios around Los Angeles and mixed by Mudrock, who has work with bands such as Avenged Sevenfold and Godsmack.
Document 10: London LeGrand: Edward "London" LeGrand born 30 July 1966. Is an American musician, lyricist, and vocalist best known for his time with hard rock supergroup Brides of Destruction with Nikki Sixx of Mötley Crüe and Tracii Guns of L.A. Guns. After the group went on hiatus he formed another band with George Lynch of Dokken and Lynch Mob fame called Souls of We releasing their debut album "Let the Truth Be Known" in 2008. He also has a side-project named Rockstars on Mars whose demos can be heard on the band's Myspace page.
Document 11: Alex Greenwald: Alexander "Alex" Greenwald (born October 9, 1979) is an American musician, actor, and record producer. He is best known as the lead singer of the California rock band Phantom Planet.
Document 12: Brides of Destruction: Brides of Destruction was a short-lived American hard rock supergroup from Los Angeles, California, formed in 2002. The band's last lineup consisted of singer London LeGrand (vocals), Tracii Guns (lead guitar) and Scot Coogan (drums, percussion). Previous members of the band were Nikki Sixx (bass), Kris Kohls (drums), Adam Hamilton (keyboard), John Corabi (rhythm guitar), Scott Sorry (bass) and Ginger (rhythm guitar).
Document 13: George Lynch (musician): George Lynch (born September 28, 1954) is an American hard rock guitarist and songwriter. Lynch is best known for his work with 80's "hair metal" band, Dokken, and his post-Dokken solo band, Lynch Mob. Lynch is considered to be one of the most influential and famous 1980s metal guitarists. He is known for his unique playing style and sound. He is ranked #68 on "100 Greatest Guitarists Of All Time" by Guitar World magazine and is also ranked #10 on "Top 10 Metal Guitarists Of All Time" by Gibson.
Document 14: Alexander (Alex Ebert album): Alexander is the first solo album by American musician Alex Ebert, lead singer of Edward Sharpe and the Magnetic Zeros and Ima Robot. It was released on March 1, 2011 under the Community Records label. The song "Truth" was featured in the season 4 premiere of AMC's "Breaking Bad" titled "Box Cutter".
Document 15: Blackie Lawless: Blackie Lawless (born Steven Edward Duren; September 4, 1956) is an American songwriter and musician best known as the lead singer and rhythm guitarist (formerly bassist) for the heavy metal band W.A.S.P.
ground_truth: musician