Harry Styles stayed in Los Angeles to party after the American Music Awards instead of flying to Australia with his One Direction bandmates.

The 20-year-old and bandmate Zayn Malik decided to stay in the US city for an extra day to celebrate their hat-trick of accolades while the rest of the group made their way to Sydney for their appearance at the ARIA Awards. 

Although Harry and Zayn touched down just in time to join their bandmates on the red carpet - albeit a little slouchier than the rest of them - Niall was quick to reveal the reason behind their late arrival.

He said: "What happened there was, we'd just won three American Music Awards, and some people wanted to get straight to Australia and Harry here wanted to have a little party in Los Angeles."

And while Harry admitted Niall was telling no word of a lie, he also claimed he'd been suffering with an earache and didn't want to risk making it worse by getting an earlier flight.

He explained to Australia's Kiis FM: "I also didn't feel very well so I didn't want to fly. I wanted to wait out the storm to fly. My ear hurts."

They also opened up about having their underwear stolen during their last visit to Australia, when a superfan pinched a pair of Liam's boxer shorts from his hotel balcony.

Harry joked:"'Now we leave them out as bait, we just leave pants around everywhere and set traps."

Seemingly all five of them have ben sent a pair of personalised Speedo swimming trunks with their names emblazoned on them.

He added: "I actually got a Speedo with my name on it. I've got mine on right now." Don't go swimming with a hurty ear, Harry, you'll never get out of Sydney. 

Photos: There were some interesting outfit choices at the Aussie ARIA awards...