David Foster's Wife Katharine McPhee Flaunts Her Flat Tummy in Red Swimsuit after Her Husband's 70th Birthday

Katharine Foster is all about showing off her banging body in a fiery red swimsuit just after she celebrated her husband David Foster’s 70th birthday.

Just days after celebrating husband David Foster’s 70th birthday on Friday, his wife Katharine is turning heads in a fiery hot swimsuit.

Yesterday, Katharine took to Instagram to give fans a glimpse of her banging body during her and David’s vacation in Mexico.

"I’m so proud that he’s my husband!

The lovely post showed the “American Idol” alum in all her age-defying glory, donning a cherry red bikini two-piece comprising of a one-hand top and high bottoms co-ord.

The “Scorpion” star revealed in the caption that the swimsuit was gotten from Andie Bikini and praised the brand for being primarily run by women.

She wrote:

“And the best part about this brand is that all their suits are made for women, BY women.”

She continued encouraging women to get themselves a piece, writing:

“So ladies, you know these are made just for you- no matter your body type. If it’s still 90 in LA, you’ll catch me walking around the street in these new suits when I’m back. #ad”

As revealed by the Daily Mail, Katharine’s swimsuit goes for £73.44. The swimsuit photo, however, wasn’t all that Katharine had for her fans from the vacation in Mexico.

The 35-year-old also shared a sweet clip of herself and David competing in a paddleboarding exercise at sunset. In the accompanying caption, Katharine asked fans to take bets on who fell off first between her and David.

The vacation photos come after Katharine celebrated her husband on his 70th birthday with a heartfelt tribute on social media, as reported by PEOPLE.

She shared a series of photos of her man, including a sweet throwback photo of them during their friendship and a never-seen-before photo from their wedding day.

In the accompanying caption, she explained that she had known her husband for 13 years and that their working relationship blossomed into a beautiful union.

She then praised her husband, writing:

“Anyone who meets him talks about how charming he is, so much so that he eventually charmed his way into my heart. I’m so proud that he’s my husband! May God bless you with many many more years.”

According to Cosmopolitan, Katharine and David first met in 2006 when she was a contestant on season 5 of “American Idol.” Afterward, they became good friends that David, even attending her wedding to her first husband, Nick Cokas.

By May 2017, Katharine and David became an item and got engaged a little after a year in July 2018. The lovebirds tied the knot in July 2019 in London, and the happy wife stunned in a custom Zac Posen wedding dress.