TV TRIBUTE TO HOLLYWOOD WALK HAS JOHNNY GRANT REMINISCING.

As the honorary mayor of Hollywood, Johnny Grant has presided over 400 Walk of Fame inductions, and the repetition has taught him one important thing about celebrities:

All of them, no matter how big, share the fear that the public doesn't really care about them.

``I remember when Tom Cruise was getting his star,'' Grant, 74, recalls. ``He was sitting in his limo a couple of blocks away worrying that no one would be waiting for him on boulevard. He asked me, `Is anyone there?' This is Tom Cruise!''

Grant shares this and other celebrity memories on ``Hollywood Walk of Fame: America's Street of Dreams,'' an American Movie Classics special premiering at 6:30 and 9 tonight.

Another weird moment: the big boo-boo at Joan Rivers' star induction.

``I said, `She's building her own dynasty. Ladies and gentleman, Joan Collins,' '' recalls Grant, a Toluca Lake resident whose second home is the penthouse of Hollywood's Roosevelt Hotel.

Rivers turned the slip into a joke, Grant says. ``She said, `It's OK. I've been called a bitch before.' ''

The 30-minute AMC special includes clips and footage from the dedication ceremonies of John Travolta, Sharon Stone, Robert Mitchum, Gene Autry, Charlton Heston, Maureen O'Sullivan, Jack Nicholson, Bob Hope and others.

Grant himself received his star 18 years ago. But on May 15, he'll get another honor: His hands and feet go into the cement in front of Mann's Chinese Theater.

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