Carrie Underwood shared the sweetest Instagram post on Wednesday morning (March 8) with fans. The singer posted an adorable audio clip of her son laughing, while Underwood laughs along with him.

"Sometimes the most beautiful music isn't music...the best way to start the day!" she captions the clip.

In the audio clip, Underwood is heard playing with her son, Isaiah. "I'm gonna get you!" she says before tickling him. His hearty laugh has the singer in stitches, before saying, "I love you." Listen to the clip above on Instagram. It's the best thing you'll hear all day, we promise!

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Underwood's son celebrated his second birthday on Feb. 27. On his special day, she posted a heartfelt message for Isaiah and shared photos of his delicious birthday cake on Instagram.

“Where did two years go? My angel is getting so big,” she writes. “On one hand, it’s so fun to see him learn and grow but on the other, it’s all happening so fast! Happy birthday, little monkey! You are my world…my heart…and I thank God for you each and every day! The two years you have been on this earth have been the best of our lives! Mommy and Daddy love you so much!”

Underwood treated her son to a Cookie Monster-themed birthday cake from her friend Ivey Childers’ bakery. The singer isn't shy about posting adorable clips of her son on social media. Last month, she shared another video clip of her son singing "Jesus Loves Me" along with her in the car. In the video, Isaiah is turned backward in his car seat in the back seat, and Underwood can be heard singing, “Yes, Jesus loves me,” followed by her little guy emulating her as best he can.

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