Chace Crawford, Penn Badgley and Shawn Pyfrom celebrate Penn’s 21st birthday at TAO in Las Vegas.

He’s only 21????

I am so old.

Also, everyone in this picture is really sober.

The glazed look in their eyes?

Food coma.

JC Chasez was there, too, but I can’t even really handle the weirdness of that fact to elaborate much on it. I guess he just likes younger men. You think he’s with Shawn these days? I think so.

HAPPY 21st BIRTHDAY, PENN!

Since we’ve already touched on Tony Romo’s new romance, let’s get back to Carrie — whose new album is pretty awesome — and her total hottie of a boy-toy, Chace Crawford. Page Six says they’re still on — and going strong!

“GOSSIP Girl” star Chace Crawford wined and dined his Southern-bred gal Carrie Underwood Tuesday night . . . well into yesterday morning. The couple dropped into Southern Hospitality to hear a set by the legendary David Allan Coe, after Crawford called to make sure Justin Timberlake’s barbecue joint carried Cristal. “He wanted to toast the success of Carrie’s new album,” said a source.

Aw … how cute is that???

I kind of wanna be Carrie Underwood.

We were the first to tell you yesterday that Carrie Underwood was dating Gossip Girl hottie Chace Crawford, and now Us Weekly has a pic of the couple. Apparently they’ve been quietly dating since July.

Poor Tony Romo!

“He is a country fan, and she thinks he is so funny and sweet,” says the source. “It’s total love.”

They do make a cute couple though!

From Page Six:

“GOSSIP Girl” stud Chance Crawford (who plays leading man Nate Archibald) found a girl in real life he could charm with bubbly and fancy parties. “American Idol” Carrie Underwood was on Crawford’s arm Friday and Saturday nights. The twosome were spotted getting cozy at Marquee over champagne and strutting around a party at the Soho Grand, where a source said “she was being rude and nasty.”

I thought Carrie was with Tony Romo, who’s definitely a hottie, but Chace Crawford? (Page Six was wrong, his name is “Chace” — Chance Crawford is a football player.)

GOOOOOOOOORGEOUS.

Also, there’s no way that’s his real name.