TikTok has launched a new ad product called “Branded Mission”. This product allows creators to connect with brands and possibly earn rewards for videos. 

Advertisers can use Branded Missions to crowdsource content from creators and turn top-performing videos into ads. Brands can make a brief and release it to the creator community encouraging them to participate in Branded Missions.  All creators who are at least 18 years old and have at least 1,000 followers can participate in a Branded Mission.

Source: https://techcrunch.com/2022/05/18/tiktoks-ad-product-gives-creators-opportunities-partner-marketers-branded-content/