TikTok has revealed its Year on TikTok 2021, a collection of the most creative UK brand activations that helped define the platform in 2021. The Year on TikTok 2021 list celebrates the brands that struck a chord with the community this year and achieved incredible results in the process. 

Commenting on the list, Kris Boger, General Manager, Global Business Solutions, UK at TikTok, said: "Looking back at what has been another exceptional year in marketing, what strikes me is the sheer diversity of brands showing up on TikTok, spanning all sizes and sectors, and the creativity they are bringing to the platform and community."

Here are the standout - and sold out - moments of 2021:

ASOS saw incredible results following its Halloween campaign, #ASOSAlterEgo. Aimed at promoting the brand's Face & Body offering, ASOS invited the TikTok community to showcase their 'alter ego' through spooky make-up looks. #ASOSAlterEgo achieved over 839 million video views in the UK alone, with 283,000 creators taking part.

Earlier this year, Co-op became the first UK grocer to launch a TikTok Branded Hashtag Challenge with #CleanitScrunchitCoopit. It came after the retailer revealed the roll-out of Europe’s most extensive in-store recycling scheme for soft plastic, plastic bags and product wrapping. The #CleanitScrunchitCoopit challenge has since received a huge 4.7 billion views.

Finally on brands thinking like creators, internationally-renowned talent agency Storm Management and global cosmetics brand Rimmel London teamed up with TikTok for a UK-wide campaign to find the next undiscovered fashion and beauty creator with #DiscoverMe. The campaign invited creators to participate in a range of Hashtag Challenges, showing their unique talent and creative flair against different lifestyle themes with an exclusive Rimmel London Branded Effect. Entrants were in with a chance to join Storm Management’s digital division ‘Storm Vision’, while also securing a 12-month contract to work with Rimmel London. The #DiscoverMe hashtag has received 457.2 million views so far.