Carrie Underwood's son has seen her perform live for the first time.

The 'Before He Cheats' hitmaker was thrilled to see her three-year-old son Isaiah Michael backstage as she played a show at the Hard Rock Hotel and Casino in Atlantic City, New Jersey.

Sharing a black and white picture of her cradling Isaiah backstage, Carrie wrote on Instagram: ''This was about 30 seconds before I went on stage tonight ... @hardrockhcac (sic)''

Meanwhile, Carrie previously confessed her son makes her feel the ''prettiest'' girl in the world.

She said: ''I feel the prettiest when my kid says something that's just super sweet, this morning, Melissa, my hair and makeup artist, was starting to put my makeup on and he's all in his pajamas and he said, 'No, don't do that!' and I was like, 'Why, baby, why are you upset?' And he said, 'I like you just how you are.' He didn't want me to put makeup on, that made me feel pretty. I know I wasn't [pretty] because I had just woken up and hadn't brushed my teeth yet, but he made me feel pretty.''

Carrie had a nasty fall in November, resulting in a broken wrist and facial injuries which needed 40 stitches, and has explained just how it happened.

She explained: ''I was clumsy and I tripped. I held onto the dog leashes in my left hand and went to catch myself with my right and just missed the step. I thought I just busted my lip. Then I walked inside and took the dog leashes off and took my coat off and went to go survey the damage and was like, 'Oh, no!' It wasn't pretty.''