IntroductionThe Covid‐19 pandemic and its ensuing effects on mental health made it clearer than ever that social bonds are critical for survival, flourishing, and mental wellbeing. Experimental laboratory‐based research with children and adults shows that activities involving movement alignment and joint action, such as dance, can facilitate social bonds.MethodsThis study examined whether an online group dance intervention positively affects social bonding and wellbeing using a randomized control design. Participants were 58 UK adolescents aged 11–16 years (N = 52 girls, 75% White, 7% Asian/Asian British, 18% Mixed‐Other), randomly assigned to an online intervention or waitlist control group. Participants in the intervention group completed an online 5‐week hip‐hop dance program during the Covid‐19 pandemic in January to February 2021. Measures of social bonding, wellbeing, and future orientation were taken at the beginning and end of the program.ResultsLinear mixed model analyses examining group × timepoint interaction showed greater increase in social bonding (p < .0001), and wellbeing (p < .0001) in the intervention vs control group. Moreover, increases in bonding significantly predicted increases in wellbeing (p < .0001), and increases in bonding (p = .03) and wellbeing (p = .0002) significantly predicted increases in the adolescents' hope for the future.ConclusionsThese data, collected at a time of mass social isolation, show that a 5‐week‐long online dance activity can help adolescents forge stronger social bonds, and improve their wellbeing and future orientation. Our findings suggest that the wellbeing and future orientation benefits of group dance may stem from having stronger social connectedness, opening up avenues for future research and interventions.