GOING TO THE DOGS: Laurie Anderson will be doing double duty at next month’s Pratt Legends awards. After being honored at the dinner and awards ceremony, the 64-year-old performance artist, composer and musician will keep the crowd entertained with a special performance. (No word yet if her singer-songwriter husband, Lou Reed, will join her on stage.) The interior designer, furniture maker and artist Juan Montoya, will also be honored at the event, as will another triple talent — the artist, filmmaker and photographer William Wegman. The latter is best known for posing his Weimaraners in various costumes and poses.