Veteran British entertainer Cilla Black will mark her 50th year in showbusiness by starring in a new sitcom. The 1960s singer-turned-TV host is set to return to primetime TV in a new comedy, Led Astray, with her longtime pal and fellow entertainer Paul O'Grady. The pair will play siblings in a pilot, written by Laurence Marks and Maurice Gran, the team behind beloved U.K. sitcom Birds of a Feather. The show, which will air on the BBC in Britain next year (14), will mark Black's first foray into comedy acting since the 1970s. Last month (Sep13), she threw a star-studded bash in celebration of the 50th anniversary of her first single, Love of the Loved, which was written by Beatles legends John Lennon and Sir Paul McCartney and produced by George Martin.