(Credit: John Shearer - Wire Image)

Last night was a really big deal for Kings Of Leon, but it's hard to imagine them stressing it too hard. They always play it so cool. But nervous or not, Tennessee's Followill brothers (and cousin) had one of the biggest rapt audiences of their young lives last night, and they flat-out killed it on whoa-oh anthem, "Use Somebody."

The Only By The Night single won the boys plenty of new admirers last night, but they already had some high-profile fans in the audience. Zac Efron (who won Best Male Performance for High School Musical 3: Senior Year) and Robert Pattinson (who won pretty much everything else) to name two! The show's studliest guests (although those Followills give 'em a run for their money!) both have their iPods loaded up with Kings Of Leon.

And as we've told you before, Miley Cyrus (who fist-bumped God for making "The Climb" Best Song) and Taylor Swift (who popped up in the Twilight segment of Andy Samberg's intro) have big crushes on KOL bassist Jared Followill. So, it's no surprise that the 2009 MTV Movie Awards gave Kings Of Leon a very warm welcome, and kept clapping well into the commercial break!

Watch their full performance of "Use Somebody," below, and see what Hollywood's all worked up about.

+ Kings Of Leon Rehearsal Photos
+ 2009 MTV Movie Awards Performance Photos
+ Bonus Kings Of Leon Photo Album!

+ Sparring Hills stars Heidi Montag and Spencer Pratt managed to pull off a whole wedding this weekend without a single sucker punch being thrown. And the priest didn't melt! Even Heidi's mom, who recently tried to reunite her daughter with an ex, gushed that they were the perfect couple. Ha. What a liar. (Remote Control)

+ AP cover models Jack Barakat, Alex Gaskarth, Zack Merrick and Rian Dawson proudly announce the release of All Time Low's brand-new album, "Nothing Personal," and follow it up with a string of penis jokes. (NothingPersonal.com)

+ In a vain attempt to keep Spencer and Heidi's egos in check, Salma Hayek married her billionaire baby daddy Francois-Henry Pinault at the Venice Opera House Saturday. The bride joined guests Bono, Damien Rice, Woody Harrelson and Charlize Theron in an upbeat rendition of "Stand By Me" at the very musical reception. In related news, the phrase "billionaire baby daddy" is officially being grossly overused. (People)

+ Taylor Lautner, I smell a serious grounding in your future! The 17-year-old Twilight star, whose parents have forbidden him from dating until the absurd old age of 28, is rumored to be sneaking around Vancouver with Selena Gomez between shoots for Twilight: New Moon and Ramona And Beezus. Ya see, this is what happens when kids play the video games on the television and talk on the cell phone. (Perez Hilton)

+ Another Nick Jonas ex defended her own new romance against negative internet allegations. Between sightseeing and autograph sessions, Miley Cyrus Twittered away speculation that she'd dump Justin Gaston to get back with Nick, calling it a "stupidddd rumor."(Just Jared Jr.)

+ Romance was really in the air this weekend! Speidi and Salma tied the knot, Selena Gomez and Miley Cyrus explored new relationships and studly High School Musical 3-star Zac Efron spent an enchanted afternoon at a Berlin beer garden with every pretty boy's dream date: Mommy! (Oh No They Didn't)

Troy Bolton, Gabriella Montez, Sharpay Evans, and Chad Danforth are making one very important stop before they head back to East High for senior year, and that's the 2008 VMAs.

High School Musical 3 most-populars Zac Efron, Vanessa Hudgens, Ashley Tisdale and Corbin Bleu will present an award on the big night!

Which raises a crucial question: who will have the most fantastically flawless hair -- Zac Efron or Vanessa Hudgens? AND, can we PLEASE talk about Corbin's hair for a second? It's a freaking national treasure. WHY is that not more widely recognized? Ponder, discuss, and GO WILDCATS!

Oh, and sorry, but Vanessa gets my senior superlative pick for East High's Most Talented. Observe: