New Kid on the Block Joey McIntyre was a guest at Backstreet Boy AJ McLean’s wedding on Saturday night, according to Us Weekly. The two singers toured together last year as the temporary boy band supergroup NKOTBSB. McLean married Rochelle Deanna Karidis at the Beverly Hills Hotel. . . . Celtic Jeff Green, who will have to miss this year’s season to get surgery for an aortic aneurysm, dined at Bricco in the North End on Friday night.