One Direction have completed a seven-hour long "thank you" to their fans in advance of the release of their third album Midnight Memories.
The five members of the boy band got stuck in to a variety of activities for the extravaganza, which fans were able to follow via a live stream on the web.
They delivered swoonworthy performances with guests such as Michael Buble, crashed Google Hangouts across the globe, competed in fashion face-offs and attempted (and failed) to set a selection of world records.
In case you were one of the few Directioners who didn't get the 1D Day memo — and we're not sure how that's possible — MTV News was eagerly watching every minute to bring you the best moments via the magic of GIFs.

When One Direction Goes Wrong
Ever wonder what it's like to walk in One Direction's shoes? Well, five lookalikes took to the streets of Los Angeles to find out.
Some fans fell for "Wrong Direction," asking them for pictures and autographs. And Wrong Direction then joined the boys in-studio, where Louis suggested they make a "supergroup" a la McBusted.

We'll Have A (Six) Pack Of 1D
The guys have been spending some serious time working on their fitness, and that was clear in a segment about how 1D squeeze in time to hit the gym while on tour.
Directioners got a peek at the band's work-out routines, including plenty of shirtless moments like Harry running on a treadmill. We also saw Zayn and Liam showing off their boxing skills and Niall attempting "10,000 squats" to get "an ass like Kim K".

Harry Styles Can Cook! (Sort Of)
Challenging the band's chef, Sarah, to a cook-off, Harry attempted to recreate a generations-old Styles "family recipe".
While he seemed to put in a lot of effort, even hilariously donning a construction hat and saw for the dish, the final product turned out to be just a sandwich (or a "manwich").
Harry still managed to win the challenge, however, but that was probably because he slipped the judges, including his sister Gemma, some cash.
Liam Has A Crush On A Supermodel
"Don't call me Mrs. Crawford". That was '90s supermodel Cindy Crawford's reaction when Harry and Liam greeted her as she joined 1D Day to give them some runway tips before an in-studio walk-off.
If Cindy, who said she was introduced to the band by her 12-year-old daughter, wasn't feeling that matronly sounding welcome, she must have been flattered by Liam's adorable fumbling.
"I can't look at you," he said, gushing over the model mum's mug, before they hit the catwalk arm-in-arm.
Liam Knocks Down A Pro Wrestler
Ahem, sorry, but was that Liam in that lucho libre mask? The kid totally dominated pro-wrestler Kurt Angle, and now we're worried he's leaving One Direction for his follow his newfound talent!
Recreating the Ghost pottery scene
Harry and Niall remade that iconic scene from Ghost, just like Demi Moore and Patrick Swayze.
World Record Attempts (And Failures)...
The 2-Ply Challenge
For their first challenge, 1D attempted to break the record for tallest toilet paper stack assembled in 30 seconds. Two Guinness Book officials were on hand to judge as the guys tried to stack more than the record 28 rolls.
Niall's A Real 'Dime'
For record attempt #2, Louis and Niall each tried to balance coins on their faces while standing up. While, Louis soon threw in the towel, Niall bravely kept spreading money out on his face hoping to beat the current record of 57 coins. Unfortunately, he only managed 21.
Bubble Butt
Did you know there was a world record for the number of balloons busted with your bum? 1D did - and Liam tried to break the record with Zayn as his helper.
Liam squatted in a chair as Zayn and another assistant fed the balloons underneath him. Unfortunately, even with two attempts, they couldn't beat 27 balloons, only bursting 22 each time.