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

Underwood's oldest son Isaiah is officially a nine-year-old! The family celebrated his birthday in style.

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Carrie Underwood throws son Isaiah impressive Muppets-themed

Carrie Underwood Debuts 'Heartbeat' at Grand Ole Opry

Carrie Underwood Calls on R&B Influences for Sexy New Song

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Carrie Underwood's Children - Sons With Mike Fisher - Parade

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

Kelly Clarkson Proud of Carrie Underwood for Sharing Miscarriages

Carrie Underwood's Sons Make Their Mom Birthday Cards

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Carrie Underwood Sings 'Happy Birthday' to Son Isaiah in the Most