One Direction- their favourite part of 2012

In 2012, Niall Horan, Zayn Malik, Liam Payne, Harry Styles and Louis Tomlinson took the U.S. (and world) by storm — dropping two #1 albums, selling out Madison Square Garden in 10 minutes, winning three Video Music Awards, and taking the title as MTV's Best Artist of the Year.

"We've had a big year," Zayn told MTV News when accepting MTV's year-end award.

It was hard for the boys to pick one moment but this is what they said :

"I think it's always a really hard question when we get asked our top moment," Styles explained. "Madison Square Garden was definitely one of the top things we've ever done and will ever do. I think it just topped off an amazing year for us, and it's just been amazing."

Another unforgettable accomplishment for 1D was at the 2012 MTV Video Music Awards.

They also took home the Moonman for Most Share-Worthy Video, Best Pop Video and Best New Artist. Plus, how could we forget: Horan snagged a kiss from Katy Perry. "The VMAs [were] unbelievable," Styles recalled.