ROCKING OUT: Sting and Stevie Wonder honor the Hall of Fame with a tune.

The Rock and Roll Hall of Fame honors music's most treasured acts, but this time it was the hall's turn to be feted. Bruce Springsteen, Billy Joel, Stevie Wonder and others celebrated the hall's 25th birthday with a concert that included all-star collaborations, spellbinding guitars and plenty of high notes.

Thursday's extravaganza at Madison Square Garden ran more than five hours and was a reunion of past inductees; e.g., Simon & Garfunkel (1990), Crosby, Stills and Nash (1997), Jeff Beck (2009), James Taylor (2000), Bonnie Raitt (2000) and Sting (with the Police, 2003).

``It's been incredible being in a room with musicians . . . who put music in your head,'' Springsteen said during his rollicking set, which featured a collaboration with the Piano Man, singing Joel hits like New York State of Mind and Only the Good Die Young.

Friday's concert had a smashing lineup including U2, Aretha Franklin and Metallica.

HEALTH UPDATE

A few weeks after being hospitalized for dehydration, we have learned Dennis Hopper has prostate cancer.

The 73-year-old Easy Rider is being treated through a ``special program'' at the University of Southern California.

NOPE, JUST FAT

If a regular person eats too many donuts one week, we hit the gym and pare back. But celebs are photographed so often they're stuck with the baby bump label. The latest victim: Pam Anderson, who looked ab fab just weeks ago at Miami's Funkshion in her Baywatch bathing suit. The 42-year-old got blogs buzzing earlier this week when she stepped out of a London hotel looking a bit thick around the middle.

Pal, fashion designer Richie Rich, told Usmagazine.com that the mother of two -- dating scuba diver Jamie Padgett -- is not expecting. ``She's not pregnant, not broke and just happy.''

THANKS, BUT NO

Despite his critically acclaimed Oscars hosting (and singing and dancing) stint last spring, Hugh Jackman will not be returning to the Oscars podium March 7.

Variety reports Jackman didn't want the job. No sub has been announced. But it's rumored to be Ricky Gervais, who will anchor the 67th annual Golden Globes Jan. 17.