Q+A: WWII buff and ‘laundry snob’ Jordan Knight of NKOTB is still hanging tough AUSTIN HARGRAVE Joe McIntyre, Jordan Knight, Jonathan Knight, Danny Wood and Donnie Wahlberg of New Kids on the Block. “New Kids on the Block: After Dark” is at Axis at Planet Hollywood today through Sunday for four concerts in the theater that’s home to Britney Spears’ residency “Britney: Piece of Me.” The four shows are the only North American dates for NKOTB this year. In fact, all of them are in their 40s now, and some are husbands and fathers. Frontman Jordan Knight chatted about Las Vegas, World War II and laundry ahead of “NKOTB: After Dark.” “How’s the weather there? It’s really hot, isn’t it?” Knight asked when he got on the phone for the interview Monday afternoon. “It’s really hot. It rained, too, so it’s humid,” I replied. “Get ready.” “Oh, boy,” Knight said. Speaking of hot, why is the show titled “After Dark”? That could be a dangerous title here in Las Vegas with many meanings. I’m not q...