Are you ready? Because One Direction are back and ready take the world by storm again.

After taking a little break, One Direction hit the stage again in a big way today by kicking off their On the Road Again Tour in Australia. But before they stepped onto the Sydney stage, Niall Horan posted a selfie on Instagram yesterday (Feb. 6) while the guys were getting ready for the Australian leg of the tour. Shot in black and white, the photo shows all the guys looking happy and hyped to get back on the stage.

But that's not all. They also did a special countdown on Twitter for their Aussie fans to hype them up for the opening show. See the retro gifs and photos below.

Since they guys got back into their groove, they have been posting photos of their rehearsals on the group's Instagram. The photos show Liam Payne, Harry Styles, Niall, Louis Tomlinson and Zayn Malik practicing their choreography with the mics, chatting about the rundown of the show and actually putting all the plans into practice on stage. Don't you just love the show of Harry giving it his all during rehearsals?

One Direction have a packed 2015 with plans of traveling to almost every continent in the world. And while that might be a huge undertaking, we know they're as excited as we are to have 'Four' performed live.

One Direction Through the Years

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