Carrie Underwood Says 'Time Flies' as She Celebrates Son Isaiah's 9th Birthday

Carrie Underwood says that "time flies" as she celebrates her son Isaiah's 9th birthday. Underwood shares her sons Isaiah and Jacob with husband Mike Fisher.

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Carrie Underwood Shows Off Her Son's One-of-a-Kind Birthday Cake

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Carrie Underwood sings Happy Birthday to her son Isaiah

Carrie Underwood celebrates son Isaiah's 9th birthday with rare photos – and you need to see his cake

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Carrie Underwood celebrates son Isaiah's 9th birthday with rare photos – and you need to see his cake

Carrie Underwood Celebrates Her Son's Birthday with an Over-the-Top Cake

Carrie Underwood Shows Off Her Son's One-of-a-Kind Birthday Cake