Ellen Gallagher, one of the most interesting, and in some ways challenging, artists from North America, mixes cultures, advertising and art in a variety of art forms. Starting with her yellow pictures which are almost a development of the childrens’ game of adding different hairstyles/wigs to faces, her last work become more interesting as human hair morphs into natural creatures such as jelly fish.
http://www.tate.org.uk/whats-on/tate-modern/exhibition/ellen-gallagher-axme