Brad Paisley Kissed Kimberly's Baby Bump @ CMAs

Brad Paisley, father to 21-month-old Huck and baby-to-be, co-hosted Wednesday night's Country Music Association Awards. He was also a two-time performer and the winner of the male vocalist award. His offstage celebration provided his sweetest moment of the evening.

PEOPLE reports that after he was awarded best male vocalist, Paisley, 36, rushed offstage into the front row of the audience, where his pregnant wife Kimberly Williams-Paisley, 37, was sitting. He kissed her and then bent down to plant a kiss on her baby bump. Brad said, "I've got four more months to go with this pregnancy and that's going to get me through some stuff – I got that in my back pocket now." The country star went on to joke of his spontaneous show of affection, "The next time I'm not performing up to par, I can say, 'Remember that?' "

Brad said he hopes one day he can replay the moment for his future son or daughter. "Kimberly and I were both talking about how special that will be for our child to grow up someday and see that tape when I kissed her belly. He or she – we don't know what it is yet – will be the second child and they always have trouble feeling important. I didn't do this with Huck – so they’ve got one on him."