One Direction

Finally! All the One Direction dudes have been working with other artists, save for Zayn Malik. Until now.

The well-coiffed Harry Styles of One Direction had a breakdown. But not the kind that would require him to drop out of public view and deal with his issues after throwing a hissy fit and shaving his head. Ahem. As if.

Jason Derulo Presents: Celebrities Talkin' Dirty

OK, ladies: If you ever wanted to hear One Direction talk dirty to you, here's your chance! Jason Derulo enlisted the guys of 1D -- along with countless A-list pop stars like Austin Mahone, Ariana Grande, Robin Thicke, Fifth Harmony and many more -- to lip sync and dance to his hot new song, 'Talk Dirty.'

Liam Payne and Louis Tomlinson of One Direction arrived at LAX on March 7 and were later seen working with Good Charlotte. Of course the dynamic duo were harassed upon landing at the airport but not by shrieking Directioners. Instead, they were pressed by the paparazzi.

One Direction are a billion dollar business, with sold-out stadium tours, tons of branded merchandise and record sales. But the boys that comprise the band are not paid equally. In fact, it's reported that two members earn a little more than their counterparts. Who's getting more and why?

The Kids' Choice Awards nominees are in -- and we're so excited. Are your favorites nominated? Read on to find out.

As if One Direction could get any cuter, Louis Tomlinson recently revealed that he and the guys (Harry Styles, Zayn Malik, Niall Horan, and Liam Payne) just can't stay mad at each other. Aw!

Congrats to Taylor Swift! The 'Sweeter Than Fiction' singer took home the most cash out of any tour in 2013 -- and she was in great company, too.

One Direction's brand is marketed in all sorts of ways. From fragrances to clothes to bedsheets, 1D and their faces are everywhere. The boys and their marketing team have found a utilitarian way to promote the brand, as well. They've teamed with British eyewear company Vision Express for 1D-branded reading glasses expressly for females.