Pregnant Katharine McPhee, 36, turns heads during errand run with husband David Foster, 71

Katharine McPhee confirmed in December that she is expecting her first child with husband David Foster.

And the 36-year-old songstress proudly displayed her burgeoning baby bump on Monday afternoon as she ran errands with the 71-year-old composer in West Hollywood.

McPhee mastered maternity chic by sporting a black longline coat and a pair of form fitting leggings.

Mom-to-be: Katharine McPhee proudly displayed her burgeoning baby bump on Monday afternoon as she ran errands in West Hollywood

She tucked a plain white tee into the waistband of her skintight trousers, while adding an extra layer of warmth to her ensemble with a black cardigan.

Katharine trotted down the sidewalk in a pair of light pink heeled sandals and with her hands tucked into the pockets of her cardigan.

The American Idol alum’s luscious brunette locks were parted down the middle and styled into a low bun.

The majority of McPhee’s gorgeous face was concealed behind a pair of large shades and a patterned mask.

Her other half: The 36-year-old songstress was joined by her husband David Foster, 71

Her other half: The 36-year-old songstress was joined by her husband David Foster, 71

Nailed it: McPhee mastered maternity chic by sporting a black longline coat and a pair of form fitting leggings

Nailed it: McPhee mastered maternity chic by sporting a black longline coat and a pair of form fitting leggings

Meanwhile, Foster trailed behind his wife of one year with a bag of recently purchased goodies in hand.

The acclaimed musician kept cozy for their couple’s outing in a navy blue and white sweatsuit and pair of Nike trainers.

He kept his silver strands covered with Craig’s baseball cap, while rocking some RayBan sunglasses and a pale yellow face mask.

Although she did not personally confirm her pregnancy until December, a source revealed to People in October that Katharine was indeed expecting her first child with David. 

Confirmed: Katharine McPhee confirmed in December that she is expecting her first child with husband David Foster; Katharine pictured in December

Confirmed: Katharine McPhee confirmed in December that she is expecting her first child with husband David Foster; Katharine pictured in December

In her official announcement, which was shared to Instagram on December 16, Katharine posed before a floor-length mirror with her arm wrapped around her baby bump. 

The Waitress star had on a baby blue peacoat that rested off her shoulders and was left slightly unbuttoned.

Although she did not include a caption, the message behind the post was clear, with her husband David commenting: ‘my most AMAZING and BEAUTIFUL GLOWING wife.’

In a pregnancy follow-up on January 19, McPhee posed for another mirror snap, but instead of blue, she modeled a silky pink robe that accentuated her baby bump

Glamorous: In her official announcement, which was shared to Instagram on December 16, Katharine posed before a floor-length mirror with her arm wrapped around her baby bump; Katharine pictured in December

Glamorous: In her official announcement, which was shared to Instagram on December 16, Katharine posed before a floor-length mirror with her arm wrapped around her baby bump; Katharine pictured in December

Pretty in pink: In a pregnancy follow-up on January 19, McPhee posed for another mirror snap, but instead of blue, she modeled a silky pink robe that accentuated her baby bump; Katharine pictured in January

Pretty in pink: In a pregnancy follow-up on January 19, McPhee posed for another mirror snap, but instead of blue, she modeled a silky pink robe that accentuated her baby bump; Katharine pictured in January

‘GIVEAWAY! NOT what’s in the oven!!’ captioned the star, who went on to promote a sponsorship with various companies.

Katharine and David originally met during Katharine’s American Idol stint in 2006, with the composer going on to the produce  the singer’s very first single.

Things between them turned romantic in 2017 after McPhee ended an eight year marriage to producer Nick Cokas in 2014.

They went on to marry in 2019 during a lavish ceremony in London, England.

Married life: Katharine and David, who originally met during Katharine's American Idol stint in 2006, married in 2019; David and Katharine pictured in February 2020

Married life: Katharine and David, who originally met during Katharine’s American Idol stint in 2006, married in 2019; David and Katharine pictured in February 2020

Foster has a long list of wives and five children in total, most recently being married to former Real Housewife Yolanda Hadid until 2017.

In a joint interview with Today in 2019, he summed up their relationship as ‘a natural coming together,’ with both working together and admiring each other’s talents throughout the years.

‘I’ve always just admired him and loved him, and he’s always been so great to people around him,’ she said.