Well if 10,000 people like the Earth Hour UK Facebook page the lovely boys from McFly will do something fun in the dark for Earth Hour…in panda onesies!
Check out the challenge where you can watch a special video to find out more about what those mischievous pandas have up their sleeves!
And they’re not the only big names who will be doing it in the dark, from Sienna Miller to Cilla Black - lots of famous faces will be taking part and switching off their lights for the hour at 8.30pm on 23 March alongside everyone at home! But wouldn’t it be great if we could get even more people to join in?
So if you’ve already liked the page then why not check out our brilliant new Earth Hour Facebook and Twitter cover pictures. It’s an easy way show your support and to let everyone know that you’ll be taking part.
Go on, invite your friends and family to join the celebration – together we can make this year’s Earth Hour the biggest yet!