JUST ADDED: 5 Seconds of Summer will be rocking the stage at this year's iHeartRadio Music Festival Village in Las Vegas! The band sat down with Ryan Seacrest to break the news. Click here to buy your tickets now, before they sell out!
Well you've heard of the selfie, but what about a "twofie?" Well, a "twofie" is like a selfie, but with two people.
Now that you're up to speed, Jimmy Kimmel challenged Pharrell to a twofie shootout. The two quickly made their way down Hollywood Boulevard to see how many twofies they could capture in 30 seconds.
The rules? Both sets of eyes and noses had to be in the picture to count.
Who won?! Find out below: