Question:  "Lovertits" is a song by a musician and performance artist of what nationality?

Context articles: Sexecology
Robert Delford Brown
Lovertits
Tanja Ostojić
Rocío Boliver
Peaches (musician)
Amanda Coogan
Boyfriend (rapper)
Black Market International
Adina Bar-On

Sexecology (also ecosexuality) is a term coined by performance artist, activist and professor Elizabeth Stephens and sex-educator and performance artist Annie Sprinkle.
 It is a combination between art and environmental activism, which seeks to make activism "more sexy, fun and diverse" and to involve the LGBTQ community, employing absurdist humor, performance art and sex-positivity as aesthetic and theoretical strategies.
Robert Delford Brown (October 25, 1930 – c. March 22, 2009) was an American performance artist. "
The New York Times" called him "a painter, sculptor, performance artist and avant-garde philosopher whose exuberantly provocative works challenged orthodoxies of both the art world and the world at large, usually with a big wink."
 Deborah Velders of the Cameron Museum of Art in Wilmington, N.C. called him "a visionary" and "the William Blake of our time."
"Lovertits" is a song by electroclash singer Peaches.
 It was released with the Lovertits EP in 2000 after Merrill Nisker adopted the performing name Peaches.
Tanja Ostojić (born 19 August 1972 in Titovo Užice, Yugoslavia) is a feminist performance artist.
 Her work draws inspiration from her own experience as a non-European Union citizen, a traveler and female artist.
 Ostojić has lived in Serbia, Slovenia, France, and Germany, but refuses to claim any particular nationality.
Rocío Boliver is a Mexican performance artist who creates body art about the repression of women in Mexico.
 In 1992, Boliver began her career as a performance artist reading her porno-erotic writings.
 Boliver has a background in video and Mexican theatre.
 She worked in theatre projects, performance and contemporary art under the prominent playwright from 1994 to 2007.
 Boliver has performed at a variety of venues such as museums, raves, universities, galleries, activist meetings and TV programs.
 An underground cultural icon in Mexico, Boliver is part of a Goth-art scene, and has presented works at alternative forums such as the Sadomasochism National Festival.
 Boliver’s work has been presented in North America, South America, Europe and Asia.
Merrill Beth Nisker (born 11 November 1966), better known by her stage name Peaches, is a Canadian electronic musician and performance artist.
Amanda Coogan (born 1971 in Dublin) is an Irish performance artist, living and working in Dublin.
 She studied under the performance artist Marina Abramović at the HBK Hochschule fur Bildende Kunste, Braunschweig, Germany.
 In her performance art, she produces video and photographs from live performances.
 Her work often begins with her own body and often challenges the expectations born of context.
Boyfriend is a sex positive American rapper, songwriter, and performance artist.
 Described as a "mile-a-minute rhyme-spitter; a bawdy, brassy performance artist and a feminist provocateur," her rhymes address subjects including sex, feminism, gender and empowerment with 'bracingly blue, carefully crafted, comic turns of phrase."
 She has said that she uses rap as social commentary, and as a way to start conversations about art and identity.
Black Market International (BMI) is a performance artist collective with international members, each one with an established and independent practice as a solo performance artist.
 Since nearly 30 years, the influential group has presented durational collective performances worldwide.
Adina Bar-On (Hebrew: עדינה בר-און‎ ‎ ), born December 19, 1951, in Kibbutz Kfar Blum, Israel, is a pioneer performance artist, considered to be the first performance artist in Israel.