Watch out for . ..

BOY GEORGE and Luke Evans, who are expected to join the original and later companies of musical Taboo, by Mark Davies Markham, for a special fundraising concert to celebrate the show’s 20th anniversary. Producer Adam Kenwright, who put on the original, has begun to assemble a cast that could include Dianne Pilkington, Declan Bennett and Julian Clary. It will be directed by Christopher Renshaw at the London Palladium on January 30 in aid of Terrence Higgins Trust and Shelter (lwtheatres.co.uk).

ANN HAMPTON CALLAWAY, the U.S. pop-jazz singer, who will treat Londoners to two of her shows. Tonight and tomorrow she’ll be at The Pheasantry in Chelsea, with The Judy Garland Songbook. On Sunday and Monday she’ll sing movie themes at Pizza Express Jazz Club in Soho. Find ticket details at pizzaexpresslive.com.