Question: What are Koshi Inaba and Martin Degville knowns for?
Context: B'z (ビーズ , Bīzu ) is a Japanese rock duo, consisting of guitarist, composer and producer Takahiro "Tak" Matsumoto (松本 孝弘 , Matsumoto Takahiro ) and vocalist and lyricist Koshi Inaba (稲葉 浩志 , Inaba Kōshi ) , known for their energetic hard-rock tracks and pop ballads. Hiroshi Asai (麻井 寛史 , Asai Hiroshi ) (born 26 April 1978) is a Japanese arranger, musician and composer for the Giza Studio label.  He is a former member of band "The★tambourines".  Since 2012 he is a member of the instrumental band "Sensation".  He arranged music for artists such as Miho Komatsu, U-ka Saegusa in dB, Mai Kuraki, Shiori Takei and many others from the Giza Studio label.  He did back vocals for Rina Aiuchi.  He participated in live concerts for artist such as Zard's since 1999, Koshi Inaba's solo live tours, Marie Ueda and Garnet Crow Symphonic Concert 2010 ~All Lovers~. The Blitz Kids were a group of young people who frequented the weekly Blitz club-night in Covent Garden, London in 1979-80, and are credited with launching the New Romantic subcultural movement.  It was Andrew Czezowski (Ex manager of The Damned) and Susan Carrington who went on to start The Roxy club with Barry Jones that introduced Steve Strange and Rusty Egan to the Blitz in Covent Garden, which started the New Romantic Movement.  Among the many attendees were Rusty Egan, Steve Strange, Boy George, Marilyn, Alice Temple, Perri Lister, Princess Julia, Philip Sallon, Carl Teper and Martin Degville (later to be the frontman of Tony James' Sigue Sigue Sputnik).  Crucially, the club lay between two art colleges (St Martin's School and Central School) and became a testbed for student fashion designers who set London ablaze during the 1980s.  These included Stephen Jones, Fiona Dealey, Kim Bowen, Melissa Caplan, Stephen Linard, Chris Sullivan, Judith Frankland, David Holah, Stevie Stewart, John Galliano, Darla Jane Gilroy, Dinny Hall, Iain Webb, Simon Withers, Willy Brown, Richard Ostell, Rachel Auburn and more.  The Blitz began making headlines thanks to its outrageous styles of clothes and make-up for both sexes, subsequently documented by Gary Kemp in his 2009 first-person book, "I Know This Much". Martin Degville is (born 27 January 1961 in Walsall) is the lead singer and co-songwriter of the UK pop band, Sigue Sigue Sputnik – which had a worldwide hit single in 1986 with "Love Missile F1-11" – and six other EMI single releases.  Sputnik was formed with ex-Generation X bassist Tony James. "Pierrot" (ピエロ , Piero ) is a Japanese-language song by Aya Kamiki, written by Inaba Koshi, and was Kimiki's second single, released on April 12, 2006.  The song is no relation to the 1983 song of the same name by Toshihiko Tahara, and begins with the lyrics ""Momoiro ni somari yuku. ."" . Josh "Joshua Ray" Gooch (born January 16, 1991) is an American guitarist, songwriter and music producer.  Joshua is the lead guitarist for Shania Twain.  Joshua has also toured with Koshi Inaba of B'z and blues artist Beth Hart.  He has recorded with producers Ross Hogarth, Don Gehman, and Johnny Sandlin.  Joshua is managed by Robert M. Knight. This is a list of episodes for the anime television series Kekkaishi.  The series was adapted by Sunrise from the manga "Kekkaishi" by Yellow Tanabe.  It was directed by Kenji Kodama with character designs by Hirotoshi Takaya and music by Taku Iwasaki.  The opening theme for all episodes is "Sha la la -Ayakashi NIGHT-" by Saeka Uura.  There are four different ending themes: "Akai Ito" (赤い糸 , "Red Thread") by Koshi Inaba (episodes 1–15, 38, 40, 48, 52), "Sekaijuu Dokowo Sagashitemo" (世界中どこを探しても , Sekaijū Doko o Sagashite mo , "Looking for Another World") by Aiko Kitahara (episodes 16–23, 39, 44, 51), "My Mirai" (マイミライ , Mai Mirai , "My Future") by Saeka Uura (episodes 24–30, 41, 46, 49), and "Kyukei Jikan 10pun" (休憩時間10分 , Kyūkei Jikan Jippun , "10 Minute Break") by Saeka Uura (episodes 31–37, 42-43, 45, 47, 50). Epic Day is the nineteenth studio album by the Japanese rock duo B'z.  It was released on March 4, 2015, more than 3.5 years after their previous studio effort, "C'mon", their longest gap between studio albums.  It came after a hiatus in which the members released solo projects, including vocalist/lyricist Koshi Inaba's "Singing Bird" and guitarist/composer Tak Matsumoto's "New Horizon". Singing Bird is the fifth solo studio album by Japanese singer Koshi Inaba, of B'z fame.  It was released by Vermillion Records on May 21, 2014 in Japan.  The album debuted at #1 at the Japanese Oricon weekly album charts and at #2 at the "Billboard Japan" Top Albums chart.  besides reaching 39# at Oricon's 2014 year-end chart The song "Oh My Love" received a video and was used at a commercial of a new camera by Olympus.  The video featured Japanese football player Keisuke Honda. Koshi Inaba (稲葉浩志 , Inaba Kōshi ) , born Hiroshi Inaba (稲葉浩志 , Inaba Hiroshi ) on September 23, 1964 in Tsuyama, Okayama, is a Japanese vocalist, multi-instrumentalist and songwriter.
Answer: vocalist, multi-instrumentalist and songwriter.