Katy Perry,
Taylor Swift,
Rihanna and
Fergie all attended a pre-Grammy party at the Beverly Hilton over the weekend.

The question is ...
Paris and
Prince Jackson,
Michael Jackson's two oldest kids, delivered a touching speech when they accepted a lifetime achievement award at the Grammy Awards tonight.
Good thing
Taylor Swift didn't win all eight Grammy awards she was nominated for, because she couldn't even hold on to the four she actually did win. Oopsies.

The 20-year-old attempted to pose with her four awards backstage, when one of them slipped and broke into pieces.
See, not even Taylor's own Grammy thought she should have won for album of the year.
BTW: It was a stunt Grammy ... not the real deal.
Prince and
Paris Jackson,
Michael Jackson's two oldest children, have been sweating over addressing the audience at tonight's Special Merit Awards ceremony .. where their dad will be honored with a Lifetime Achievement Award.
Joe Jackson tells TMZ Prince and Paris have each prepared a speech. Joe says they are both great speakers and Paris has been working on her speech for a week.
As for the buzz that the kids will perform at the
Grammys on Sunday: Joe says it ain't happening.
You wouldn't expect
Tiger Woods to be nominated for a Grammy, but on last night's live announcement show --
George Lopez found an opportunity to tee off on the guy.

TMZ just received the following statement from The Recording Academy -- the people behind
The Grammys:
"Rarely has the world received a gift with the magnitude of artistry, talent and vision as Michael Jackson.
He was a true musical icon whose identifiable voice, innovative dance moves, stunning musical versatility and sheer star power carried him from childhood to worldwide claim.
A 13-time Grammy recipient, Michael's career transcends musical and cultural genres, and his contributions will always keep him in our hearts and memories.
We are deeply saddened by this tragic news, and our hearts go out to his family and to music lovers around the globe who mourn this great loss."-Neil Portnow
CEO/President
The Recording Academy
Rihanna lost more than her innocence the night she was allegedly beat up by Chris Brown -- she's also out $1.4 million in jewelry.

RiRi is asking the cops to hand back a pair of earrings and three rings the cops logged as evidence on the night in question. And get this -- the jewelry isn't even hers. According to docs, the bling belonged to four companies which loaned it to her for the pre-Grammy party she attended with Brown that night.
Rihanna's attorney, Donald Etra, claims he asked for the jewelry back earlier this month and submitted written requests on April 7 and April 17. Etra also claims that Brown's attorney, Mark Geragos, has no problem with the jewelry being released.
The earrings are described as yellow metal hoop earrings with white stones. The first ring is a yellow metal ring with white stones and green stones. The second and third rings are described as being yellow metal rings with white stones.
Brown faces a felony assault charge and a charge of making criminal threats.
As a young girl,
Gloria Estefan fled Castro's Cuba ... and has barely aged since!

Here's the 34-year-old multiple Grammy winner back in 1992 (
left) -- and 17-years-later, the 51-year-old version in Palm Beach on Thursday (
right).
Come on, shake your body baby, do the conga!

On the food chain of death, the late saxophonist LeRoi Moore of the Dave Matthews Band is kinda like plankton, according to The Recording Academy.
The Academy is finally saying why LeRoi didn't make the cut in its "Encore" segment of the Grammy show:
"Nearly 250 members of our music community have passed in the last year, and all of them have been listed in the program book for the 51st Annual GRAMMY Awards, including LeRoi Moore. For the "Encore" segment of our annual GRAMMY Awards telecast, unfortunately we are unable to include all of the talented and wonderful people within the allotted timeframe. The Academy recognizes Moore's contributions to music and music education, and we are deeply saddened by his premature passing."
They're tellin' the story. You buyin' it?
Chris Brown was too busy
turning himself in to the cops for allegedly assaulting Rihanna to perform at the Grammys last night -- but now we've got exclusive rehearsal video of what his routine would have looked like.

This video was taken Friday during his Grammy rehearsal for "Forever," the song he was slated to perform.
Law enforcement sources tell TMZ Rihanna's injuries were severe -- two "huge contusions" which swelled up on both sides of her forehead. We're told she also suffered "a bloody lip and nose."

One of the law enforcement people put it this way -- the contusions "look like an MMA fighter or something ... [It] looked like she was growing devil's horns."
We've also heard that Rihanna may have suffered bite wounds on one of her legs and arms, however, one source close to the situation tells us he doubts that is the case.
Chris Brown has been booked on a felony criminal threats charge. If the D.A. files the case, domestic violence charges could be added.