Last night US gymnast Simone Biles landed the first of a possible five gold medals, wowing the world with her skills.
She landed the best vault, beam and floor routines, leading the US team to win by a huge margin of more than eight points.
Many are calling Biles the face of this year's Olympics, so we decided to uncover seven things you might not know about the talented teenager.
1. She's tiny.
Biles comes in at a diminutive 4ft 8in (1.4m).
That's really small - especially when you put her next to US volleyball player David Lee.
2. She's just 19.
This means she just missed out on the 2012 Olympics, but has well and truly been making up for lost time.
When she's not training, she does normal 19-year-old things like post videos of pizza on Instagram.
3. She was raised by her grandfather and his wife.
One of four children, Biles refers to her grandparents as her parents, due to her biological mother's drug and alcohol addiction.
4. She's a record-breaker.
She's the first African-American to be world all-champion, and the first woman to win three world all-around titles in succession
Biles has the most gold medals ever won by a female gymnast in the history of the World Championships with 10, and is favourite for five Olympic crowns in Rio.
5. She's got a cool head.
"I personally don't think I felt any pressure or expectations because I had this wonderful team behind me," said Biles after last night's competition.
"I don't think we could have been any more ready."
6. She's got her own signature move.
Called the "Biles", it's an utterly incredible move. Her body is fully extended, doing a double layout flip with an added half-twist before landing.
7. She's from Texas.
Biles is a fan of baseball, and you've just got to see how she threw the first pitch for the Houston Astros.