The musical that includes characters called Sky Masterson and Nathan Detroit is "Guys and Dolls." It is a musical comedy with music and lyrics by Frank Loesser and a book by Jo Swerling and Abe Burrows. The story revolves around Nathan Detroit, a small-time gambler, who needs money to organize an illegal game. He bets the high roller Sky Masterson $1000 that he cannot take missionary Sarah Brown to Havana, Cuba, for the weekend. The musical features popular songs like "Luck Be a Lady," "Sit Down, You're Rockin' the Boat," and "Adelaide's Lament." It premiered on Broadway in 1950 and has since become a popular musical performed around the world.