Apparently, the Jonas Brothers are as bouncy as the toe-tappin' pop music they put out. Why else would they put a trampoline in the middle of their concert stage?

But it's not just there for the dancers or the chance items that get tossed onto the platform. Those gutsy rockers actually dare to jump on and off it. Which, we guess, is all well and good until someone falls on their face.

This hasn't happened quite yet, but Joe Jonas was clearly trying to imitate those fancy 540 jump-kicks the B-boys do on America's Best Dance Crew and it didn't turn out too well.

Kerplunk! He took a tumble and really stuck the landing...on his tush.

Love 'em or hate 'em, it's still funny.

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Do you see that? Even Hayden Panettiere is laughing it up in Big Pic.

Steve Granitz/Getty Images; Gareth Cattermole/Getty Images

Who knows if American Idol is going to suck without Paula Abdul next season, but her empty chair will be getting quite the workout regardless.

The original Idol, season-one winner Kelly Clarkson, and teen dream Joe Jonas are the latest hitmakers who will be pulling guest-judge duty on the Fox series' upcoming ninth season, the L.A. Times' Showtracker blog reported Tuesday.

Like Victoria Beckham, Katy Perry, Mary J. Blige and, most recently, Shania Twain, the pop stars have signed on to critique a set of wannabes during one of the audition rounds.

(Not really sure how any "Burnin' Up" fan is going to make it through her/his solo in front of the arguably hottest JoBro, but maybe we'll be lucky enough to be privy to some innocent, nonfatal hyperventilating.)

Clarkson last graced the Idol stage as a performer in March, while Joe and his fellow Jonas Brothers performed on the season-seven finale, before the coronation of David Cook.

Well, we know that both judges can sing. The only question is, do we care what they think?

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Doesn't Kelly Clarkson look hot in the video for "Already Gone"?

No need to pinch yourselves, tweeners. You're not dreaming.

Disney has gathered its brightest stars, Miley Cyrus, Demi Lovato, Selena Gomez and the Jonas Brothers for a "We Are the World"-like music video for Friends for Change: Project Green. "Send It On" is meant to unite the kiddies in green living and protecting planet Earth.

That's probably why they ditch the big stage and energy-sucking bright lights for the great outdoors. At first, we were really distracted by the oh-so-convenient intimate pairing of Miley and Nick Jonas. And then we were bugged by Joe Jonas wearing yet another pink shirt and impressed with Selena out-adorabling the lot of them. But we guess there was some sort of charitable point.

Somehow, though, the whole thing seems far less poignant than Michael Jackson and Lionel Richie and tons of other major stars teaming up for humanitarian aid in Africa. Maybe that's because it had nothing to do with powerful mice.

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All these guys won Teen Choice Awards. Did you see them?

twitter.com/Jonasbrothers

Nothing really beats a good costume gag…or three.

The Jonas Brothers apparently have found the ultimate cure for on-the-road ennui: wear a silly costume.

Perhaps we should have seen this coming when Joe did that ridiculous Beyoncé video, but we still got a chuckle when we clicked onto the photo they tweeted and saw Kevin, Joe and another band member dressed as the Three Little Pigs. (Question: Does that make Miley Cyrus the Big Bad Wolf?)

(Nick, however, is absent from the photo. Why such a party pooper, bud?)

It wasn't Kev and Joe's first goofball moments of the tour, either.

This weekend, Joe was spotted looking like he'd just arrived from a DeLorean. Monday, he showed his true, juicy colors as a bunch of grapes.

And big brother Kevin got in on the action—or, got some action, as the case may be—when he posed as a baseball player who grabs his fiancé's behind! Best costume yet!

So, again, we have to ask, where's Nick's suit?

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Yeah, Nick! Why so serious? Oh yeah. This.

•  The new Jonas Brothers video for "Fly With Me" has landed on the Internet and features some stellar choreography. Joe may not be reprising his "Single Ladies" moves, but that stuff he does with the hat? Spectacular.

•  Lindsay Lohan and Samantha Ronson might be back together again. Given all the house calls, were they ever really apart?

•  Even after starring in The Hangover, Bradley Cooper and Justin Bartha don't have very effective morning-after cures for a long night of drinking.

•  Looks like we won't be seeing Hugh Laurie on Broadway anytime soon, unless Elton John develops House: The Musical. Hey, it could happen!

•  Susan Boyle is back in Scotland with her cat, Pebbles. Of course she has a cat named Pebbles.

•  The bromance between Russell Crowe and Ridley Scott has taken a major turn for the worse, but picturing Amy Adams and Emily Blunt palling around makes us feel much better about it.

•  Dear Mandy Moore and Ryan Adams: You crazy newlyweds actually put together a pretty neat duet. Nice work. Love, Rise 'n' Shine

If only Reese Witherspoon had lent Bret Michaels that helmet she's wearing in Big Pic, the Tonys afterparties would have been much more eventful.

We'll protect you almost as well as that helmet if you follow us on Twitter @eonline!

AP Photo/Martin Mejia; Dimitrios Kambouris/Getty Images

The memo on waning Jonas Brothers mania apparently has yet to reach Lima, Peru.

Riot police were called to the city's oceanfront Marriott Hotel Sunday when more than 1,000 hormonal fans took to the streets to form a tearful, shrieking and otherwise order-be-damned welcome wagon for the brothers Jonas.

"There are thousands of fans outside the hotel," Kevin, Nick and Joe wrote on their website. "The police were called in to control the crowd...Can't wait to meet everyone!"

The feeling was apparently mutual.

"We just woke up to the sounds of fans screaming downstairs outside of our hotel," the siblings added this morning. "What a great way to start off our new world tour!"

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Hollywood Records

Given the bomb that was the Jonas Brothers' 3-D movie, it's understandable that the Disney dudes get a little nervous before they drop their new album.

"Paranoid," the first single from Lines, Vines and Trying Times, lands on airwaves on May 8 and kicks off what is sure to be an exhaustive campaign and concert tour leading up to the album's June 16 drop date.

The promo tour has already launched with the boys gracing the cover of the latest issue of Seventeen magazine. And no matter how they're feeling about their latest venture—anxious, excited, whatevs—they aren't afraid to share their lofty goals.

For example, in addition to making music, 19-year-old Joe Jonas wants to be one of the most sought-after actors as well as pen one of the best-selling books in history.

"I think Johnny Depp's work is really great—he always incorporates music into what he does," he says when asked to list his acting role model. "[I also want to] write a book one day, because I love to read. The Alchemist [by Paulo Coelho] is my favorite book of all time."

Even if Kevin, Nick and Joe are uncertain of what's ahead, their label thinks the album just might change the world or something, calling it "an incredible music journey" and "a veritable smorgasbord of pop and rock gems."

With promises like that, the next single will probably be called "Insomnia."

Kevin Mazur/WireImage.com

The couple that stays together breaks up together is sometimes still contractually obligated to play together.

E! News has learned that Miley Cyrus is set to reteam with her ex-flame (and Mouse House coworker) Nick Jonas as part of an all-star recording session for a song called "Pass It On"—a track an inside source calls "Disney's version of 'We Are the World.' It's about kindness and passing it on."

Fellow Jonases Joe and Kevin are also among those on board for the track, which is being recorded later this week. The tune was penned by Adam Anders and Nikki Hassman, who wrote Cyrus' Hannah Montana hit "Hoedown Throwdown."

Cyrus, the JoBros and other Disney musicmakers will shoot the "Pass It On" video on Saturday.

As for those tabloid reports of a simmering feud between Miley and Nick?

"We don't hate each other," Cyrus told E! News' Ryan Seacrest today. "We really love each other. He's really cool, and I'm happy we've been able to stay friends.

"Everyone thinks that me and the Jonas Brothers have this big feud going on, and me and Nick are really close friends now. We talk all the time and he's one of my best friends."

(Originally published April 2, 2009, at 2 p.m. PT)