David Foster, 70, and his wife Katharine McPhee, 36, step out for a stroll in Los Angeles

They celebrated their first wedding anniversary over the weekend, sharing a romantic snap from the big day on social media.

And David Foster and Katharine McPhee looked laid back as they stepped out for a stroll in Los Angeles on Sunday.

Katharine, 36, cut a casual figure for the outing with her husband, 70, donning a light grey jumper with a blue print and a pair of navy skinny jeans.

Out and about: David Foster, 70, and Katharine McPhee, 36, looked laid back as they stepped out for a stroll in Los Angeles on Sunday 

The singer carried her pet Chihuahua Wilma in a dark grey wrap while she also sported a pair of multicoloured trainers.

The American Idol runner-up completed her look for the day by styling her brunette locks into a ponytail.

David opted for a navy long-sleeved T-shirt and a pair of blue jeans along with dark trainers and a pair of sunglasses.

The musician put safety first as he wore a black face mask, topping off his outfit with a navy cap.   

Laid back: Katharine, 36, cut a casual figure for the outing with her husband, 70, donning a light grey jumper with a blue print and a pair of navy skinny jeans

Laid back: Katharine, 36, cut a casual figure for the outing with her husband, 70, donning a light grey jumper with a blue print and a pair of navy skinny jeans

It comes after Katharine shared wedding day photos and a gushing tribute to her husband on Instagram earlier on Sunday.  

In the snap, David held his blushing bride as the newlyweds stood together at the altar. 

Katharine looked gorgeous in her white wedding dress and veil, which dramatically cascaded down to the floor. 

She rested an arm upon her husband’s shoulder, while carrying a bouquet of lilac-tint flowers in her free hand. 

Man and wife: The couple celebrated their one-year wedding anniversary over the weekend, with Katharine sharing a romantic snap from the big day on social media

Man and wife: The couple celebrated their one-year wedding anniversary over the weekend, with Katharine sharing a romantic snap from the big day on social media 

‘A year ago today I married the love of my life,’ she captioned the snap. ‘Thank you for always loving me and inspiring me in all aspects of my life. I love you. 

‘Here’s to the future! (Oh and happy anniversary to the other love of my life – this dreamy dress! thank you @ZacPosen!!)’.

She also shared behind-the-scenes footage of herself trying on her gorgeous wedding dress, with Posen on hand to help fit the bride into the frock. 

Here comes the bride: Katharine looked gorgeous in her white wedding dress and veil, which dramatically cascaded down to the floor

Here comes the bride: Katharine looked gorgeous in her white wedding dress and veil, which dramatically cascaded down to the floor

I do: The couple posed dramatically inside the church with Katharine lifting her train in the air

I do: The couple posed dramatically inside the church with Katharine lifting her train in the air

The loving shout-outs continued on her Instagram stories. 

‘Happy anniversary to us,’ she wrote in a wedding day snap, along with several lovey-dovey emojis. ‘I love you @DavidFoster.’ 

‘I also really love that dress! Like a lot!’ she said, tagging Zac. 

Katharine tied the knot with David in London following a one-year-long engagement. 

Say yes to the dress! She also shared behind-the-scenes footage of herself trying on her gorgeous wedding dress

Say yes to the dress! She also shared behind-the-scenes footage of herself trying on her gorgeous wedding dress

All hands on deck: Posen helped fit the bride fit into the dress himself

All hands on deck: Posen helped fit the bride fit into the dress himself 

David has been married four times before Katharine, and the music producer opened up about his struggles in relationships in his upcoming documentary, David Foster: Off The Record.  

Speaking of his five marriages, David said in the trailer that ‘when things get rough or bad, rather than working it out I run.’

Katharine replied: ‘He runs but I come chasing for him, but I did tell him, I said: “There are gonna be times when I need you to come find me”‘.

The film, which is directed by Barry Avrich, includes interviews with some of the legendary songwriter’s daughters, four out of five of whom are older than his current wife.

His daughter Erin Foster states matter-of-factly: ‘Women are his weakness.’

Wow: Katharine shared a breathtaking snap of her flowing wedding gown

Wow: Katharine shared a breathtaking snap of her flowing wedding gown