Hayes Grier, the 15-year-old digital celeb who appears in the current season of ABC’s “Dancing With the Stars,” has signed with CAA.

Grier, the youngest male competitor in the 21-season history of “DWTS,” has nearly 12 million followers across social channels, including 4.1 million followers on Twitter’s Vine 6-second video service. This year he was featured in the 16-city United 26 Tour, and he has inked partnership deals with Aéropostale and Verizon’s Go90.

His brother, Nash Grier, is an even bigger Internet star, with 12 million followers on Vine, more than 4 million on YouTube and 5 million on Twitter. Nash Grier, who stars in Fullscreen Films’ forthcoming teen drama “The Outfield,” is repped by WME.

CAA will work to create opportunities for Hayes Grier across multiple domains, including digital distribution and partnerships, film, TV, endorsements, personal appearances and publishing. Grier is affiliated with DreamWorks Animation’s AwesomenessTV multichannel network, and he is managed by 26 Entertainment.

Grier is a co-founder of Social Bet’s Challenged app, which lets digital influencers issue stunt “challenges” to their fans to benefit charities (like last year’s ALS Ice Bucket Challenge phenomenon). The free app launched on Apple iTunes in September.