Rory and the former One Direction boy-bander have been friends for several years. Niall Horan has actually been Rory's caddy at a handful of tournaments. At the 2015 Masters, Niall had a viral moment of his own when he slipped and fell on live TV — bringing Rory's clubs down with him in the process.

The tumble was mildly embarrassing for Niall (he blamed slippery pine needles for his fall), but he and Rory both laughed it off. And at Rory's encouragement, Niall came back to the Masters the following year. 

Good luck, Rory!