Greg James raises more than £4m for Comic Relief after 1,000km cycling challenge

After cycling 1,000km through England, Wales, and Scotland, Greg James has raised more than £4m in his tandem bike challenge for Comic Relief.

The Radio 1 presenter has had lots of support along the way, from Newsrounders and even Prince William, who joined Greg on the bike for some of his journey.

As he crossed the line at Murrayfield Stadium in Edinburgh, Greg cried as he thanked everyone who has been there for him during the epic challenge.

He said: "The thing I'll remember the most is seeing the joy from everyone and pushing through the pain to get to that joy."

A massive well done to Greg from BBC Newsround!

Greg's cycling journey began in Weymouth eight days ago, as he set off on a mission to bring people together in support of the challenge.

He's been cycling the whole way on a tandem bike, which is a special type of bicycle with two seats that allows two people to ride at the same time.

Before he set off, Greg got the news that his dad wasn't very well, but he's stayed determined to reach the finish line and spread positivity.

On the final morning Greg's mum sent a message saying his parents were "beyond proud" of what he'd achieved.

Despite saying he'll "never cycle again", Greg said it'll be an experience he remembers and treasures for a long time.

"It's been such a struggle at times but everyone has got me through it."

Greg has raised a huge amount of money for Comic Relief, the charity behind the Red Nose Day event.

Red Nose Day is all about using comedy and fun to raise money to help people who are struggling.

This year, Comic Relief says that the money raised will provide "food, shelter and safety to people in the UK and around the world".

During Greg's cycling challenge, the presenter said, "Three million would be like, wildest dreams. Anything over a million is a bonus."

And he's gone above and beyond this, with money still rolling in from people's donations.