US Triple Crown champions Justify and American Pharoah settled in at Coolmore Stud.
There are only 13 US Triple Crown champions in history and these two stallions are the only two that are living and now they're in the Upper Hunter.
It's American Pharoah's third season with Coolmore and Justify's first season and they both settled in very quickly, heads down in their feed buckets as soon as their hooves hit the paddock.
Tom Moore from Coolmore Stud at Jerrys Plains said it's a very historical moment.
"It's great to be a part of it. It's extremely exciting and everyone in every area couldn't be more excited to have them here and they've cover some great mares,"
"The brief with Justify in particular was very simple. He's going to cover the best book of mares we can possibly get to him including the likes of Global Glamour and Invincible Star who ran in The Everest last year,"
"And a number of Group 1 winners and Group performed mares and Group 1 producing mares. He'll cover an elite book of mares like no other first season sire has covered at Coolmore."
The foals will be coming thick and fast at Coolmore; their ninth for the season was born on Friday.
"The Australian breeding industry is in a great position, it's the envy of every other breeding industry in the world. Everywhere from Europe to America to Asia has their eyes on our industry through things like The Everest and The Melbourne Cup Carnival so its the place to be if you want to be involved in racing," said Tom Moore.
Image credit: https://coolmore.com/farms/australia