Alt rockers OK Go have pushed the envelope since their Grammy-winning video for 2006's 'Here it Goes Again' where the band performed an elaborate dance on moving treadmills. Now, the four-piece is back with another impressive video for their latest single, 'This Too Shall Pass.'

Much like the board game Mouse Trap, OK Go built a massive wonder of physics for their new video in which one contraption sets off another. The camera follows every move in one single shot that has us totally baffled.

The band built the "machine" over the course of several months and filmed the video in a two-story warehouse in Los Angeles with the help of some super smart people at Syyn Labs.

"These guys can build rocket ships," lead singer Damian Kulash says. "The point is to not make things that are perfect. The point is to make things that use the properties of the objects we're playing with and that, you know, are homemade -- that anybody can do."

 

This week Taylor Swift launched her brand-new iPhone app, and while it's got tons of cool features, the best part about it is that it's free.

Many other celebrity apps cost money, so the fact that Tay is offering hers up at no cost is yet another reason why the 20-year-old singer is so beloved by her fans.

In addition to being able to score new music, videos and photos, users will be able to access Taylor's tweets, post messages on a fan wall and connect to their Facebook and Twitter pages with the app.

There are dozens of things to check out on the application, but our favorite feature is the tour dates page, which uses your current location to show you all the upcoming concerts in your area. You can even see a list of shows that have already happened.

Sure, you can access a lot more media on Taylor's official website, but her free app is perfect for on-the-go updates. Not only can you download news from Taylor while you're away from your computer, but you can also upload your own fan photos and comments with your device. Taylor's app is available on iTunes now.

Teens and tweens who have done amazing charitable work will be recognized for their selflessness at the AllyKatzz Tween Town Hall Meeting held at UCLA this Saturday, March 13.

Over a hundred girls have been invited, as well as celebs like Ana Maria Perez De Tagle, Bella Thorne and Demi Lovato's little sister Madison De La Garza. Demi might even stop by, too.

During the event, girls will be "DM'ing" (Denim Messaging) for charity by bringing a pair of jeans to decorate with inspirational messages and donate to girls in need.

Celebs will also be decorating and signing jeans to help bring attention to teen homelessness. Some of the jeans will be on display at Bloomingdale's in Sherman Oaks, CA and later auctioned off for charity at clothesoffourback.org.

Denise Restauri, founder of AllyKatzz.com, a social networking site for young girls, is on a mission to empower this generation. She says, "These tweens and teens highlight the very best of what youth today stands for. They had the insight, the compassion, the courage, the willingness, and ultimately the commitment to stand up, speak out, and lead others by spearheading their own charities or making an impact on a larger non-profit."

 

AT&T has launched a new public awareness campaign called It Can Wait, which focuses on teen drivers. The print and online ads, which will run in the upcoming months, feature real stories and actual text messages that were sent/received prior to a life-changing car accident.

This may seem morbid, but it's be a shocking way to drive the message home. According to the National Highway Traffic Safety Administration, nearly 80 percent of crashes and 65 percent of near-crashes have involved some form of driver inattention. As new drivers and major cell phone users, the risks of texting while driving are particularly great for teens.

The tagline for AT&T's campaign is: "Txtng & Drivng ... It Can Wait." As a part of the initiative, the wireless company is asking cell phone users to look at the most recent text message on their device.

 

Who else better to launch a new clothing line than the Material Girl herself? Madonna and her 13-year-old daughter Lourdes Leon are working together on an affordable fashion collection for teens called (what else?) Material Girl.

The line will be available in Macy's stores and online at Macys.com beginning this August with pieces ranging from $12 to $40. That's just a couple weeks after Selena Gomez drops her Dream Out Loud line on July 15. Judging by Lourdes' hipster style, Material Girl will be more trendy while Selena's going for a girly, boho vibe.

Madonna and Lourdes' collection will include shirts, skirts, shoes, jewelry, handbags, and more. To create the line, Madonna partnered with Iconix, a brand also linked to Bongo and Candie's, as well as high-end designers like Badgley Mischka. In 2011, this Madonna/Iconix collaboration (called MG Icon) may also launch a perfume and other beauty products.

 

Miranda Cosgrove is not only the star of iCarly and the latest face of Neutrogena, but she's also a super talented singer. The teen sensation is prepping for the release of her forthcoming album, 'Sparks Fly,' and on Friday, fans will be treated to a premiere of the first single, 'Kissin U,' during her own live Facebook chat.

By logging on to the online event, fans will be able to interact with and ask questions of the 16-year-old singer before she debuts her new single. Need an ice breaker to kick off your chat? 'Kissin U' was co-written by Miranda herself.

While 'Sparks Fly' is Miranda's first full album release, fans of the multi-talented Nickelodeon star have already heard her vocals on iCarly's theme song, 'Leave It All to Me,' as well as four additional songs performed by Miranda on the iCarly soundtrack.

Last year, she released a solo EP called 'About You Now,' just before the opening of her animated feature film Cloudy with a Chance of Meatballs for which she contributed the song 'Raining Sunshine.'