Justin Timberlake has added some North American dates to his tour, and one of them is Boston. Timberlake, who played Fenway Park with Jay Z twice in August, will perform at the TD Garden on Feb 27. Tickets go on sale Monday. Timberlake already has a show at the Garden on Nov. 4. . . . Joy Behar will perform at the Rosie’s Place benefit “Funny Women . . . Serious Business” at the Hynes Convention Center on Oct. 15.