"Acafellas" is the third episode of the American television series Glee. The episode premiered on the Fox network on September 16, 2009. It was directed by John Scott and written by series creator Ryan Murphy. The episode sees glee club director Will Schuester (Matthew Morrison) form an all-male a cappella group, the Acafellas, neglecting the club in favor of dedicating his time to the new endeavor. New Directions struggle with choreography, and resist attempts at sabotage by members of the cheer squad. Mercedes (Amber Riley) harbors romantic feelings for Kurt (Chris Colfer), who comes out as homosexual.

Singer Josh Groban guest stars as himself, John Lloyd Young appears as wood shop teacher Henri St. Pierre, and Victor Garber and Debra Monk play Will's parents. The episode features covers of seven songs, including the instrumental piece "La Camisa Negra" performed on guitar by Mark Salling. Studio recordings of two of the songs performed were released as singles, available for digital download, and two of the tracks also appear on the album Glee: The Music, Volume 1.

Sean Kingston (born Kisean Anderson; February 3, 1990) is a Jamaican-American singer. He pursued a music career and debuted in 2007 with the album Sean Kingston.

Kingston was born on February 3, 1990, in Miami, Florida and moved to Kingston, Jamaica when he was six. He attended high school in Ocho Rios. His grandfather was the noted Jamaican reggae producer Lawrence Lindo, who worked under the stage name Jack Ruby. At age 11, Kingston spent 3 weeks in jail for breaking and entering, and Kingston lived in a car while his mother was incarcerated for identity theft.

Sean Kingston was discovered through MySpace by Tommy Rotem at Beluga Heights, and signed to the label in a partnership deal with Sony. Beluga is a label notable for its focus on discovering and developing artists. In an interview with HitQuarters label head and producer J.R. Rotem described this process with regards to Kingston:

"Sean Kingston was a rapper when we found him and it was a development process to get him more melodic. At Beluga we essentially refine the talent so that it's more of a marketable product."