Cassandra Monique Batie[2] (born December 30, 1984), known professionally as Andra Day, is an American R&B and soul singer, songwriter, and actress.

In 2021, Day made her acting debut with her portrayal of Billie Holiday in Lee Daniels' biopic The United States vs. Billie Holiday, winning the Golden Globe Award for Best Actress in a Motion Picture – Drama, and received a nomination for the Academy Award for Best Actress.

[3] In 2010, Stevie Wonder's then-wife, Kai Millard, noticed Day performing at a strip mall and brought her to the attention of her husband.

's "Big Poppa" with Marvin Gaye's "Let's Get It On" and another that combined Amy Winehouse's "He Can Only Hold Her" and Lauryn Hill's "Doo Wop (That Thing)".

Other producers and contributors to what would eventually become her debut studio album included Raphael Saadiq, Questlove, James Poyser, DJ Jazzy Jeff, and The Dap-Kings.

[4] Day has also performed at the 2015 BET Awards,[13] the closing ceremonies of the 2015 Special Olympics,[15] the Essence Music Festival,[16] and on television shows like Jimmy Kimmel Live!,[17] Good Morning America, and numerous others.

[6] It was met with critical acclaim with NPR's Katie Presley saying Day's voice has "Eartha Kitt's unflappable confidence, Amy Winehouse's effortless grasp of classic jazz, Billie Holiday's access to raw emotion and Adele's range and pop sensibility".

[14] In November and December 2015, Day appeared alongside Stevie Wonder in an Apple TV commercial in which the two sang Wonder's song "Someday at Christmas".

In October 2015, she sang "Rise Up" at The White House and again performed the song for A&E's live special, Shining a Light: A Concert for Progress on Race in America.

Purchasers of the cups at McDonald's could enter a sweepstakes that would have allowed them to see Day perform at the Essence Music Festival in June 2016.

[33] In 2021 Day was involved as writer and song performer on American educational television series We the People, winning the Children's and Family Emmy Awards for Outstanding Short Form Program.

[34] In 2022, it was announced that Day will be starring in the Lee Daniels' horror/thriller The Deliverance with Mo'Nique, Omar Epps, Aunjanue Ellis-Taylor and Glenn Close.

[36] Day has received three Grammy Award nominations for her R&B Album, Cheers to the Fall and her performance for "Rise Up" in 2016, and for Best Song Written for Visual Media for "Stand Up for Something" from Marshall.