We are organizing a Workshop and a Competition at International Conference on Computer Vision (ICCV) 2021. The competition is split into 3 Challenges-Tracks: i) valence-arousal estimation, ii) 7 basic expression classification, iii) 17 action units detection. The Competition is based on Aff-Wild2 that is annotated for all these behavior tasks. More details can be found here. The competition has started!