If, like us, you woke up this morning to a news feed full of celebs taking part in the latest charity craze, then you’ll know what the ice bucket challenge involves: A-listers (including cool fashion girls Iggy, CaraSelena and Lena) stripping down and pouring a bucket of ice over themselves in order to raise money for charity. We’re lovin’ the nominations too: Justin Bieber chose to nominate Obama (do it!) before icing himself. 

So what’s the story behind the ice? Well, the money raised from the challenges is going straight to the ALS Association to raise funds for sufferers of neurodegenerative disease, amyotrophic lateral sclerosis. If you’re nominated, you have 24 hours to complete the challenge or you must donate $100 to charity. Brilliantly, it’s been reported that an estimated sweet $3million has been raised already. Ice, ice, baby!

Want another head's up from the cool crowd? Check out the cropped trousers that were all over the shop at Copenhagen Fashion Week.