Katharine McPhee is in her birthday (bathing) suit!

The “American Idol” alum celebrated turning 40 on a boat with her husband, David Foster, and their friends.

“It’s been such a magical week!” the singer captioned sunny snaps on Instagram Wednesday. “Thank you all for all the birthday love.”

Katharine McPhee celebrated her 40th birthday in a blue bikini. katharinefoster/Instagram
The actress covered up in a crocheted cover-up by Pitusa. katharinefoster/Instagram
She showed off her “magical” party via Instagram. katharinefoster/Instagram
“Turning 29 isn’t so bad,” the singer joked. katharinefoster/Instagram
She posted sunny snaps ringing in her new year with friends. katharinefoster/Instagram

McPhee jokingly concluded, “I guess turning 29 isn’t so bad 🤣🫶🏻.”

The actress put her abs on display in the social media upload as she partied in a blue bikini and Billabong straw sun hat ($38).

She covered up later on in a yellow-and-white Pitusa crochet dress ($245), completing her laid-back look with strappy sandals.

The boat was decorated with balloons. katharinefoster/Instagram
Her friends enjoyed a breakfast spread. katharinefoster/Instagram
McPhee’s husband, David Foster, drank a piña colada. katharinefoster/Instagram

Want more celebrity and pop culture news?

Start your day with Daily.

Thanks for signing up!

Please provide a valid email address.

By clicking above you agree to the Terms of Use and Privacy Policy.

Want celebrity news as it breaks? Hooked on Housewives?

Check out more newsletters

The “Country Comfort” star gave her followers a glimpse of her party decor on board the boat, from silver “HAPPY BIRTHDAY” balloons to a delicious spread of fruit, waffles and more breakfast items.

She also showed a “new” version of her 74-year-old husband enjoying a “piña colada, baby, with booze.”

The couple, who have been married since June 2019, often clap back at criticism about their 34-year age gap.

The couple got married in 2019. Instagram/@katharinefoster
They share 3-year-old son Rennie. Instagram/@katharinefoster

McPhee “totally gets the judgment,” telling “Dr. Berlin’s Informed Pregnancy Podcast” listeners in a 2021 episode that she was initially “very concerned with what people [would] think” of their romance.

“We had a real journey, and I had a real process,” she explained. “It took me a while to kind of come around to really want to have a real, serious relationship.”

The “Smash” alum was married once before to Nick Cokas, while Foster’s ex-wives include B.J. Cook, Rebecca Dyer, Linda Thompson and Yolanda Hadid.

Disclaimer: The copyright of this article belongs to the original author. Reposting this article is solely for the purpose of information dissemination and does not constitute any investment advice. If there is any infringement, please contact us immediately. We will make corrections or deletions as necessary. Thank you.