Katharine McPhee is embracing her bikini body in honor of her 41st birthday.

On Monday, the actress showed off her birthday suit on her Instagram Story — a red-hot bikini that highlighted her impressively toned figure.

The “American Idol” alum donned the scoop neck-style suit along with a pair of black oversized sunglasses, and in one image, wrapped an Hermès scarf ($1,200) around her head.

Over her mirror selfie snap, McPhee expressed her positive outlook on life on her last day as a 40-year-old: “Getting older, loving myself, loving my body and loving life!” she wrote. “20-year-old self had no idea.”

In a second selfie, the singer lounged by the pool, taking in her “last day of 40,” as McPhee wrote over the image.

She also highlighted her outfit of the day, which featured Loewe barrel jeans, a Marni blue knit crop top, Proenza Schouler red gel shoes, and the same sunglasses.

It seems that McPhee has a yearly routine; she celebrated her 40th birthday in the same way — enjoying a day under the sun while rocking a bikini, taking a ride 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. “Thank you all for all the birthday love,” adding, “I guess turning 29 isn’t so bad 🤣🫶🏻.”

41 has never looked so good.