This is such a juicy #ThrowbackThursday!!
Since then, the two have pretty much gotten closer after that. Hazza attended the Sundance premiere of Zach's film, Wish I Were Here, and the two grabbed dinner together when they were in the same city!
They're total BFFs!
And just for all us Directioners, former Scrubs star shared a sweet yet intimate photo of the two snuggling together in bed for a #TBT!