Billie Eilish (b. 2001) is a singer and songwriter who made her commercial debut in 2015, has topped multiple Billboard charts, and was named in the 2021 Time 100 list.
Eilish appears on Sesame Street singing "Happier Than Ever" with Count von Count. The song premiered on YouTube on November 9, 2021 (YouTube), seven months ahead of its appearance on the show in Episode 5232.
Her first hit, "Ocean Eyes," was featured on the soundtrack for Everything, Everything (with Amandla Stenberg), "Bad Guy" from her first studio album appeared in Brightburn (with Elizabeth Banks), and she wrote the title song of the 2021 James Bond film No Time to Die.