In 2003, Wu Man began working with Philip Glass, performing in the premiere of his opera "The Sound of a Voice" at the American Repertory Theater. She is featured in the recording of a suite from this work, which was released in 2007 on Glass's private label, Orange Mountain Music. In 2004, Wu Man was approached by Glass once again to collaborate on a commission from the Cultural Olympiad on the occasion of the 2004 Summer Olympics in Athens. Taking Orion as its title and inspiration (the constellation can be seen from both hemispheres throughout the year), the piece contains movements representing various countries around the world. The third movement, "China", was co-written by Glass and Wu Man, and features Wu Man on pipa. Additional collaborators include Ravi Shankar, Mark Atkins, Foday Musa Suso, Ashley MacIsaac, and Uakti. The work was premiered prior to the Games, and recorded and released on Orange Mountain Music in 2005.