Willis' ex-wife, Demi Moore, was in attendance along with her husband, Ashton Kutcher, and Willis and Moore's three daughters -- Scout, Rumer and Tallulah.

"I used to come down here and look at these stars and I could never quite figure out what you're supposed to do to get one," Willis said. "And time has passed and now here I am doing this, and I'm still excited about it. I'm still excited to be an actor."

Other celebs in attendance included Kevin Costner, Ben Affleck, Billy Bob Thornton, Don Johnson and Sylvester Stallone.

Willis rose to fame in the dramedy "Moonlighting" in 1985. He won the Emmy Award for outstanding lead actor in a drama series in 1987.

His film credits include "Die Hard," "Pulp Fiction," "The Sixth Sense" and "Armageddon." The fourth film in the "Die Hard" series, "Live Free or Die Hard," is due out June 29.