Playbill.com is remembering Mr. Leigh with a look at his enduring anthem, "The Impossible Dream."
The 2002 revival of Man of La Mancha performs on the Tony Awards.
Kelly Clarkson, Fantasia Barrino and Ruben Studdard:
Audio of Elvis:
Diana Ross and the Supremes:
Audio of Linda Eder:
Placido Domingo, Anna Netrebko and Rolando Villazon: