Prince William is hosting a party with an African theme for 300 friends and family to mark his birthday on Saturday.
He's given a rare interview as part of his birthday celebrations.
He reveals that he likes riding high-speed motorbikes and that he has a "very good relationship" with his 18-year-old brother, Prince Harry.
Stubborn
He also admits to having a "slightly stubborn" streak.
On a more serious note, Prince William said he "learned a lot" from visiting homeless people with his mother Princess Diana, who died in 1997.
He also stuck up for his dad, Prince Charles, who's often been given a hard time by the press.
For now, the prince says his main task is focusing on his studies at St Andrew's University.
"I've got to get through that," he said.
Hear story 
Talk about this now!
Win Prince William stamps
Try our princely quiz!
