NBC just realized Mariah Carey is worth the hassle … because they have now booked her to perform live tonight … this after pulling the plug on her last night. TMZ broke the story mariah showed up more then 3 hrs late for a taped performance that was supposed to air during the xmas tree lighting wedn night in rock center. She was delayed because she was yacking with divorce lawyer about divorce settlement. when she finally showed up, frustrated nbc execs sent her packing. But NBC had a change of heart and now they are rolling the dice that she will show up tonight.
