Saw this in a Billboard biography of Hauschka (Volker Bertelmann), an independent experimental musician based in Dusseldorf, Germany.
http://www.billboard.com/bbcom/bio/index.jsp?pid=682874
Hauschka has successfully combined the chamber music aspect of prepared piano (see composers Henry Cowell, John Cage, Christian Wolff, Max Richter, Maurice Delage and Arvo Part) with pop, rock and electronic sensibilities. Incredibly, this puts him in league with such diverse artists as easy listening duo Ferrante & Teicher, rockers John Cale of the Velvet Underground, Tom Constanten of the Grateful Dead,
Christine McVie of Fleetwood Mac, David Bowie, Elton John, the Waitresses, Eddie Van Halen and Tori Amos; electronica's mad scientist Aphex Twin; Ernst Horn of the Darkwave ensemble Deine Lakaien, jazz pianist Brad Mehldau and Terry Adams of NRBQ.