Chris Mears and Jack Laugher became Team GB's first ever divers to win gold in the men's synchronised 3m springboard.
They finished ahead of the United States's Sam Dorman and Mike Hixon in second, with China's Cao Yuan and Qin Kai picking up bronze.
Here are five things you may not have known about the diving duo:
1. They are best friends
Mears, 23, and 21-year-old Laugher are best friends, house-sharing in Leeds, and constantly laughing with one another.
After securing gold, Mears has now finished competing but now plans to watch Laugher go for gold in the individual event, which begins on Monday.
And oh, in case you were wondering, Laugher is pronounced like drawer.
2. Mears had a brush with death
In January 2009, Mears collapsed following a training dive and required emergency surgery to remove his spleen.
He was given a 5% chance of survival.
He suffered seizures after initially being released and spent a month in hospital. Three years later he made his Olympic debut.
3. Both are into music
Mears listened to Deadmau5 and Laugher to Drake during their competition, as usual.
Mears became interested in DJ-ing during his recuperation and is now a professional. He has also worked as a record producer.
He released a single called Mexico in 2015.
4. Both Laugher and Mears come with pedigree
Laugher and Mears teamed up in 2014 ahead of claiming Commonwealth gold in Edinburgh, as part of the Glasgow Games.
Third at the World Championships followed in 2015, before they won the European title in London in May.
Their Olympic success was their first in a global competition, they said.
5. Laugher is the first British diver to win two medals at the same World Championships
Laugher became the first British diver to be crowned world junior champion in 2010 in the 3m springboard event.
He also became the first British diver to win two medals at the same World Championships in 2015, with bronze in both the 3m springboard synchro and the individual 3m.
Qualifying in the individual in Rio takes place on Monday.