The Jonas Brothers are expected to make their first late-night television talk show appearance since their highly rated Grammy performance.  On Thursday, February 12, Kevin, Joe and Nick will be appearing on The Late Show with David Letterman, along with other guest stars such as Chris Russo, the sports radio personality who is known as “Mad Dog” and is currently the host of Mad Dog Unleashed, and Ashford & Simpson, the successful husband and wife songwriting team.

During their late-night guest stint, the Jonas Brothers will be promoting their upcoming film, Jonas Brothers: The 3D Concert Experience, which will hit theaters on February 27.

Kevin, Joe, and Nick, also known as The Jonas Brothers, will be ushering TV viewers to a night of teen dramas and rock and roll when they serve as hosts on The CW on Tuesday, February 10 at 8pm ET/PT.  The two-hour special will kick off with 90210's 16th episode called “Of Heartbreaks and Hotels,” which is also the series' Valentine's Day-themed episode.  Then the drama continues at 9pm when Robert Buckley (Lipstick Jungle) and Jennifer Elise Cox (The Brady Bunch Movie) guest star in the 16th episode of Privileged entitled “All About Betrayal.”

But aside from acting as hosts for the night, the Jonas Brothers will also offer a sneak peek of their new film, Jonas Brothers: The 3D Concert Experience, which will hit theaters on February 27.  For this special promo, 90210 star Jessica Lowndes will be joining the rock trio as the brothers talk about their experience working in 3D, show never-before-seen footages, and a clip of the group performing their hit song “Tonight.”

In the last year, the Jonas Brothers have become a teenage pop culture phenomenon. Who doesn’t know about the singing trio that has taken the world by storm? And even if you’ve never heard their music, there’s a good chance you’ve at least seen them.

If your New Year's resolution last year was to live under a rock, you might not know about the Jonas Brothers. Even if you resolved to spend the year in a mountain cave, now and then you'd still be able to hear the synchronized, high-pitched screams of adolescent girls in every surrounding metropolitan area. And, at that point, you'd start to wonder, like the rest of the world did at the beginning of 2008, what all this Jonas excitement is about.

In 2008, at every turn, the Jonas Brothers answered, showing us exactly why they've grown from Disney stars with a small but devoted fan base into the biggest teen group in a generation, complete with sold-out stadium shows, #1 albums, hit movies and TV shows. In 2007, the Jonas Brothers was a band. In 2008, Jonas Brothers is a brand, with worldwide appeal. But if you think they take a bit of it for granted—well, you really are under a rock, aren't you?

Contrary to what Star magazine is reporting, Kevin Jonas is not leaving the Jonas Brothers.  Fans can now breathe a sigh of relief as the hit Disney trio insisted on their MySpace page that rumor is completely false.

Recently, reports have surfaced that the Jonas Brothers is losing a member and that Kevin, 21, was quitting the group to pursue a solo album of "adult music."

The 2008 Grammy nominations were announced earlier today, and there are some names among the nominees who TV fans will likely be familiar.  The 51st edition of the Grammys will take place on Sunday, February 9 at the Staples Center in Los Angeles.  The program will air on CBS.  Though the Grammys have recently been criticized for not embracing more modern music in its prestigious categories, this year's nominees belie a transition into more modern fare.  For instance, hip hop artist Lil' Wayne received the most nominations this year with eight.  For TV fans, The Jonas Brothers (Camp Rock) were nominated in the Best New Artist category, Stephen Colbert (The Colbert Report) was nominated for Best Spoken Word Album, and Flight of the Conchords were nominated for Best Comedy Album with their self-titled debut.