Backstreet Boys played to a capacity crowd at Nautica in August, and the group is coming back to town to perform at House of Blues at 7 p.m. on Monday, Dec. 9 as part of the Q104 Holiday Ho show. The best selling boy band of all time just issued a new studio album and is celebrating its 20th anniversary. Singer-songwriter Gavin DeGraw and the pop-punk act Plain White T's round out the bill. Tickets are $35; they go on sale at 10 a.m. on Friday.