We're pretty well impressed that Niall Horan and Harry are in their phone contacts, but yeah, they did explain that they're collaborating with One Direction on some song writing...so into the contacts the 1D guys go. We should all be so lucky (we'll write you a song, guys).
They landed on Niall first and we thought there would be a hilarious phone prank on Nialler...but you know, he was having a snooze, so on to Harry they moved with a hilarious setup--asking Hazza for money. And Harry was totally game. And polite. Because of course. He didn't shoot them down, but said he'd have his assistant figure it out.
Other highlights of the bit? Niall was deleted from the phone (sad face) and Grimmy pulled off his best Irish lad accent (brilliantly horrible). Niall later tweeted: "I had a missed call from @Truman_Black, it's all starting to make sense now! Matty you idiot hahahahaha! @grimmers"