Last night, tween screams filled the air as Justin Bieber, with the angelic voice of "an electrified chipmunk," performed in Madison Square Garden. Elsewhere in New York, hero newsman Pat Kiernan got his Justin Bieber haircut on.

Tonight brought us the season finale of Shaq Vs., a show in which Shaquille O'Neal issues challenges to celebrities. This time, it was O'Neal vs. tween sensation Justin Bieber. Video of their dance-off—and O'Neal rapping at Bieber's concert—inside.

Boys all over New York are copying Justin Bieber's iconic mop top, a look he stole from lesbians. Like we said, they think it's cool and chicks dig it. But what does this mean for their future?

Singer-teenager-Canadian Justin Bieber and rapper-producer-neurotic Kanye West "dropped" their much-Tweeted-about collaboration with famed rapping chef Raekwon. It's a remix of Bieber's "Runaway Love," for which Kanye recycles a classic RZA beat and Raekwon recycles his old lines. Click to listen!

Justin Bieber has been working non-stop since he was like 12. All that hard work is getting to him: The Biebs has cancelled a Syracuse, NY show because he's sick. #getwelljustinbieber is going to be trending on Twitter for weeks.

Spencer Pratt and Heidi Montag's Sex Tape Will Feature pre- and post-op Heidi. Lindsay Lohan can't exercise. Real Housewives of New Jersey blow-up! Saturday Gossip Round-up is part of the problem.

This week people got punked by the Biebs, fired by Bravo, Tweeted by Palin, and trashed by Apple. Let's take a look back.

Justin Bieber and Kim Kardashian did a Graduate-themed photo shoot for ELLE's September issue. This really bothers Bill O'Reilly, and he let it be known tonight in a weird segment full of concern, confusion, and sexual references galore. Video inside.

Today at Gawker.TV, Justin Bieber sped up 800% sounds terrifying, footage of a 13-year-old Scarlett Johansson, the new Sun Chips bag is louder than the NYC subway, and Jennifer Aniston addresses why she responded to Bill O'Reilly's remarks about her.

This week, we discovered that Justin Bieber's song, "U Smile," is awesome when slowed down 800% (listen here). Speeding it up by the same factor results in a totally different experience. Warning: you might need an aspirin after this.

Check out this video, wherein a cat demonstrates his distaste for the omnipresent Biebs. Maybe he just wants more Twilight coverage in his teen magazines.

Oh, joy! CBS has released an odd one-minute promo spot for the 11th season premiere of CSI, which—in case you weren't aware—guest stars tween pop sensation Justin Bieber. Come in and take a look at it, won't you?

Uh oh, the mop-tops are on the loose and they are committing crimes! The Smoking Gun has compiled a children's treasury of perps arrested for various crimes — from drive-bys to simple larceny — who all sport Justin Bieber 'dos.

Kevin Kristopik, the Michigan teen whose number was tweeted by Justin Bieber on Saturday in a fit of vengeful rage, was on MSNBC today for an interview with Tony Alexander about the incident. It was hilariously awkward—video inside.

Kevin Kristopik—the 15-year-old whose phone number Justin Bieber tweeted to his 4.5 million followers as punishment for Kristopik hacking his friend's Twitter account—has taken to Inside Edition to demand an apology from the teen heartthrob.

Justin Bieber is very popular. Lots of people love her songs! One of Bieber's most popular tunes is called "U Smile." But what happens when one slows it down by 800%? Well, it becomes a haunting, 36-minute Enya-like thingy. Seriously.

The kid whose phone number Justin Bieber tweeted got 26,000 text messages.

[Justin Bieber in concert in Auburn Hills, a town named for his hair. Image: Splash]

Internet fandom has existed since the dawn of the Internet. But Justin Bieber's fans have pioneered a strange new form: Justin Bieber micro-gossip, which painstakingly chronicles the obscure controversies and characters only a true Belieber can follow.

On Monday, Justin Bieber was hit in the head with a giant water bottle, hurled by a crazed fan at a concert (see it here). Now, the incident's been auto-tuned and remixed—and it's better than the original!