a lifelong exponent of the integration of art and architecture, his architectural collaborations include work with zaha hadid, norman foster, arata isozaki, oscar niemeyer, i. m. pei, césar pelli and renzo piano. he served a 7-year term as chairman of the architecture foundation, and served on the design review committee of the commission for architecture and the built environment. his artistic collaborations have included work with david bailey, hugh hudson, linda mccartney, paul mccartney and ivor abrahams.