Listen to Chloe x Halle’s “I Say So,” released for World Children’s Day

Chloe and Halle have no doubt gotten recognition for being connected to Beyonce but their voices are nothing short of amazing — that Bey connection came because of their "Pretty Hurts" cover.

Their latest track "I Say So" sees them lending their angelic vocals to the United Nations for World Children's Day. The pair will perform the song at the United Nations in New York Monday which will mark the first-ever global celebration of the event.