Sam Smith got to the nub of the matter when he celebrated his Golden Globe win.

Sam tasted sweet victory at the Beverly Hilton Hotel before leaving for an after-party at the Chateau Marmont on the Sunset Strip.

Now we know ... it's way better than a door stop.

A ton of Hollywood celebs gave David Bowie the perfect salute after the Golden Globes -- a full-on dance party to the icon's biggest hits.

The impromptu tribute went down at HBO's after-party Sunday night. Jon Hamm, Harrison Ford, Rob Lowe, Jonah Hill and even Mel Gibson stopped by for the party at the Beverly Hilton.

We're told when news of Bowie's passing broke, the DJ started spinning Bowie's hits late into the night, and you can see ... the crowd LOVED it.

Orlando Bloom and Katy Perry had a hot night ... of conversation after the Golden Globes.

They seemed to be getting very cozy at the Weinstein Company and Netflix after-party.

But since Katy and her bf just did a duet of "Natural Woman" -- less than 2 weeks ago -- we're sure Orlando was just chatting about his fave John Mayer tunes ... and NOT her enormous boobs.

Cuba Gooding Jr. had a goood time after the Golden Globes -- partying, shadow boxing, razzing Uber drivers and cutting Sylvester Stallone a break for forgetting to thank black people.

We got Cuba leaving the post-Globes bash at the Sunset Marquis, and he was wound up and ready to go! You've gotta see this celebration ... we know he's playing O.J. Simpson in the upcoming 'American Crime Story' -- but looks like he wants to play Sugar Ray Leonard after that.

Cuba even offered an explanation for Sly forgetting to shout out Michael B. Jordan and "Creed" director Ryan Coogler during his Globes speech.

Watch, it's just fun ... especially the parting shot as his Uber sped off.

Ricky Gervais interrupted Mel Gibson during his Golden Globes presentation to ask a question that has bugged many for years ... what does "sugar tits" mean?

TMZ broke the story of Mel Gibson's DUI arrest back in 2006, and one of the things law enforcement told us at the time was that Mel referred to a female deputy as "sugar tits."

Ricky couldn't resist, but Mel fired back ... he never said it. Mel and his people are adamant ... he may have said the other stuff but he's clean on "sugar tits."

This video is hilarous ... Leo DiCaprio winces and flinches as Lady Gaga walks up to the stage to accept her Golden Globes award.

It's worth watching twice.

A gaggle of stars were driven a couple of miles from the Beverly Hilton and hit the Sunset Strip for a Golden Globes after-party.

Leo DiCaprio, Mel Gibson, Jennifer Lopez, Beyonce and Jay Z, America Ferrera and Zendaya hit up the CAA after-party at the Sunset Tower Hotel in Bev Hills, CA.

Ice Cube narrowly escaped a hugely embarrassing moment during the Golden Globe nominations -- not only did they snub "Straight Outta Compton," but Cube was asked to be there!

Sources close to the award show tell TMZ a rep for the Hollywood Foreign Press Association invited Ice Cube last month to do the live announcement of nominees in L.A. We're told Cube had to decline though, because he was already scheduled to be in NY.

The Globes' diss of 'Compton' is baffling enough, but imagine if Cube had been standing on the stage when it happened?!!

Fans on social media are already blasting the H.F.P.A. for being out of touch -- but if Cube was there ... they'd have a lot of 'splaining to do.

Jennifer Aniston is just too damn cool for words. She demanded a ride from a friend in a joking ... yet totally foul-mouthed way.

Like we said -- classic Aniston cool!

One of Bill Cosby's famous accusers was cheering when Tina Fey and Amy Poehler skewered the comedian during the Golden Globes.

Law & Order actress Michelle Hurd thinks it's ironic ... 2 female comedians who were cracking jokes about Cosby's alleged antics could be more powerful in swaying the public than the accusers themselves.

Hurd tells us ... Fey and Poehler give the allegations credibility given the profile of the Globes.

She thinks Cosby has been impervious to the criticism and hostility aimed at him, but she's hoping the cumulative impact of hecklers at his concerts, women speaking out and now 2 famous women taking an international stage and blasting Cosby will finally get to him.

Hurd came forward back in November, alleging Cosby groped her in a dressing room while they worked on "The Cosby Show" together.

Jennifer Aniston is awesome ... dropping the F-bomb during the endless limo line following the Golden Globes Sunday night.

Aniston got a little impatient waiting for her SUV outside the Beverly Hilton with fiancé Justin Theroux ... joking she'd ditch her own ride if a friend got them the hell outta there.

She's pretty famous for being down to earth and just plain fun ... and she was true to form.

One thing ... it's pretty clear who's calling the shots. Watch.

Monica Lewinsky hobnobbed with Hollywood elite after the Golden Globes continuing a reemergence ... which some call NOT coincidentally timed to match Hillary Clinton running for prez.

We got Monica leaving a Globes after party at the Chateau Marmont ... and posed the question she will most likely have to deal with next year -- will she cast a vote for Hillary?

Also interesting ... who she partied with at the event. Monica was photographed hanging with her longtime Hollywood BFF, Alan Cumming.

Gotta say, he looks good on her.

Tina Fey and Amy Poehler did what they said they would do ... take shots at Bill Cosby during their opening monologue at the Golden Globe Awards -- and they went in HARD!

Tina and Amy turned their opening into a full roast of Cosby's rape allegations -- each doing impressions of the Cos talking about slipping pills to unsuspecting women.

Perhaps surprisingly, the Hollywood crowd ate it up. There were a few shocked faces, but only a few.

Of course, Cosby has never been convicted and vehemently denies the allegations ... so we're guessing he wasn't laughing.

With the 72nd ceremony in full swing, let's do the time warp and look at a few of the famous faces who attended back in the day.

Amy Adams proved she can belt out showtunes with the best of 'em ... and by best of 'em, we mean the crowd at a gay karaoke bar in L.A. ... and TMZ has the footage.

Just days before winning the Golden Globe for Best Actress in a musical or comedy ... Adams hit up a gay bar and belted out a stellar rendition of "Defying Gravity" from "Wicked."

The performance may have been loud ... but we're told everyone in attendance was pretty impressed (and not just 'cause they were drunk.)