David Elder, Mary Testa, and Meredith Patterson of 42nd Street perform for “Broadway on Broadway” in Times Square.

Rosie O’Donnell (in firefighter T-shirt) and Sylvia Miles attend opening night of the new Broadway hit musical Urinetown at the Henry Miller Theatre.

Legendary dancer Ann Miller (center) congratulates the cast of 42nd Street at the Ford Center for the Performing Arts after the show.

Karen Mason, Louise Pitre, and Judy Kaye from Mamma Mia! performed in “Broadway on Broadway” in Times Square.

The stars Caitlin Carter and Mark Bove at the opening night party for A Chorus Line at the Paper Mill Playhouse in New Jersey.

The cast of The Dinner Party congratulates Penny Fuller (in pink) on receiving her “caricature” at Sardi’s.

Eileen Martin (in red) surrounded by dancers from Riverdance on Broadway at the closing night party at Chelsea Piers.

Ian McKellen and Helen Mirren at the opening night party for Dance of Death at Bryant Park Grill.

Michele Lee, Valerie Harper, and Tony Roberts at a party for The Tale of the Allergist’s Wife at the Ameritania Hotel to welcome Harper.

Maria Cellario, Kate Burton, and Blair Brown at the opening night party for Hedda Gabler at the Roosevelt Hotel.