Very few people get to say they get to work side-by-side with royalty on a cause that's extremely close to their heart. But in his role of chief executive officer at Centrepoint, Seyi Obakin OBE has spent a lot of time with Prince William, teaching him about the homeless charity's work and mission.
The Duke of Cambridge is so committed to learning about the issue among young people that he spent a night sleeping on the streets with Seyi back in 2009.
He first visited one of their centres when he was child as his mum Princess Diana wanted him and Prince Harry to understand the issue, and has been passionate about their work ever since.