Question: Are Karen O and Buster Bloodvessel both singers?

Context articles: Mighty Wind
Bad Manners
Sod Buster Ballads
Masaki Kyomoto
Buster Williams
Karen O
Saw Bwe Hmu
Buster Bloodvessel
Pure DOPE
Lip Up Fatty

Mighty Wind is an album that was released to celebrate gospel musician Andrae Crouch's 40th year of recording gospel music.
 Crouch was able to get many well-known gospel singers to guest star on the project including Marvin Winans ("All Because of Jesus"), Karen Clark-Sheard ("Jesus Is Lord"), Fred Hammond ("Oh Give Thanks") and Crystal Lewis ("We Give You Glory").
Bad Manners are an English 2 Tone and ska band led by frontman Buster Bloodvessel.
 Early appearances included "Top of The Pops" and the live film documentary, "Dance Craze".
Sod Buster Ballads is a 1941 album by the Almanac Singers: Woody Guthrie, Millard Lampell, Lee Hays and Pete Seeger.
 The songs are:
Masaki Kyomoto (京本 政樹 , Kyōmoto Masaki , January 21, 1959 –) is a Japanese actor, singer song writer, and guitarist.
 He has appeared in films and television series including "Legend of the Eight Samurai", "Sukeban Deka", "Kamen Rider Black", "" (aka "Ultraman Great"), "Cutie Honey", "Chage and Aska", "Ōedo Sōsamō", "Mito Kōmon", "Anmitsu Hime", "Food Fight", "Ultraman Tiga", "Ultraman Dyna", "Ii Hito", "GARO", 'Tenchu:Yamino Shiokinin" and most recently "81diver".
 He has performed on the soundtracks to "GARO" and "", performing the first two ending themes for the former, and producing GARO Project's performances of the final two ending themes for the series and the ending theme for the special.
 Masaki got a role in a buster film "Legend of the Eight Samurai" as Inuzuka Shino and it became a sensation that lead to Masaki's break out role "Ryu" on a popular Japanese period piece samurai drama series "Hisattsu shigotonin V" where he played Japanese obi-belt maker who is ex-ninja turned to be an assassin (shigotonin) to kill bad guys.
 He became a big star by that role and since then has appeared in numerous period piece drama series.
 He often plays a role much younger than his actual age due to youthful appearance.
 His picture with his son Taiga Kyomoto (Johnny's Jr.) went viral in Asia and many thought he is Taiga's older brother instead of father.
 He is an established musician as well produced sound track for TV shows and music for himself and other singers.
Charles Anthony "Buster" Williams (born April 17, 1942 in Camden, New Jersey) is an American jazz bassist.
 Williams is known for his membership in pianist Herbie Hancock's early 1970s group, working with guitarist Larry Coryell from the 1980s to present, working in the Thelonious Monk repertory band Sphere and as the accompanist of choice for many singers, including Nancy Wilson.
Karen Lee Orzolek (born November 22, 1978), better known by her stage name Karen O, is a South Korean-born American singer and musician.
 She is the lead vocalist for American rock band Yeah Yeah Yeahs.
Saw Bwe Hmu (Burmese: စောဘွဲ့မှူး ; 19 October 1952–24 July 1993) was a co-founder and the band leader of the Burmese band "Iron Cross" and a well known songwriter.
 The ethnic Karen Christian was the lead guitarist of the band.
 Other band members included Chit San Maung (guitar), Khin Maung Thant (bass), Banya Naing (keyboards) and Kha Yan (drums).
 Lay Phyu, Ah Nge, Myo Gyi and Wyne Wyne were the key singers of that band and R Zarni soon joined the band later.
 Composers Maung Maung Zaw Latt and L Phyu freed it from its reliance on such popular American bands as Metallica and won it critical acclaim and a wide public.
 He played the guitar at "Success" and "Symphony" music bands before "Iron Cross" was founded.
 He composed songs for Kaiser.
 He was a music critic and his pen name was Zar Hlaing.
Douglas Trendle (born 6 September 1958), better known as Buster Bloodvessel, is an English singer and the frontman of the ska revival band Bad Manners.
 His stage name was taken from the bus conductor played by Ivor Cutler in the Beatles' 1967 film "Magical Mystery Tour".
Pure DOPE is an American magazine and branding agency that focuses on highbrow urban culture and young, fly and affluent tastemakers.
 Its coverage includes entertainers, athletes, hip-hop and R&B artists, film and television stars, fine artists, entrepreneurs, street glam brands, and skateboarders.
 Its name is an acronym for "Don’t Over Process Everything".
 Each edition has an abstract theme with a cultural meaning.
 Popular artists and celebrities to cover Pure DOPE include: August Alsina, Tinashe, French Montana, Dascha Polanco, Sage The Gemini, Jazmine Sullivan, Fabolous, Angela Simmons, Soulja Boy, Cymphonique Miller, Big Sean, Trina, Meek Mill, Keke Palmer, The-Dream, Karen Civil, Dae Dae, Melanie Fiona, Chanel West Coast, Nick Cannon, Draya Michele, Travie McCoy, Angela Yee, Yo Gotti, The Game, Lindsey Morgan, Rich Homie Quan, Bianca Santos, Buster Skrine and many others.
 International singers Agnez Mo (Indonesia) and Maluma (Colombia) have also covered Pure DOPE Magazine.
 Additionally, the outlet has two companion publications: SEXEE Magazine and MANSION Men's Magazine.
"Lip Up Fatty" is a single released by British 2 Tone and ska band Bad Manners in June 1980, which reached No. 15 in the UK Singles Chart.
 It is one of a number of songs by Bad Manners about 'being fat', (a reference to the round figure of frontman, Buster Bloodvessel).
 According to Bloodvessel "Lip Up Fatty" was an expression used at his school "to tell people to shut up".
 Its signature melodic lines were a simple but careful blend of brass instruments and lead harmonica theme, played by Alan Sayag (Winston Bazoomies).