Nicole Kidman was playing supporting wife at Keith Urban's Blues and Roots Festival in Byron Bay last night. Although the two have been taking things easy, Nicole is well into her second trimester so we can't blame her for yawning here and there during Keith's show. We bet it had nothing to do with his performance. She'll most likely be joining him for the rest of his shows until their little one is born. If there is one thing she should know, it's that concerts can induce early labor so towards the end of her pregnancy, she better take it easy.