Katharine McPhee and her infant son have been finding inventive ways to cool off from the sweltering summer temperatures.

The Broadway star and husband David Foster welcomed a baby boy named Rennie back in February.

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On Monday, McPhee took to Instagram to share a hilarious photograph captioned “mommy & me”.

The post shows the 37-year-old singer drinking a beer while hanging out with Rennie in a splash pool.

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McPhee previously shared another funny and honest take on the realities of motherhood after posting a picture of herself breastfeeding during a visit to Dolce & Gabbana.

The new mom recently gushed about welcoming her first child while appearing on “The Kelly Clarkson Show”.

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“He’s such a good little baby and I’m so in love,” she declared. “It’s my greatest job I’ll ever have.”