Katharine McPhee, 35, shows off her athletic physique in form-fitting gym leggings as she works out ahead of her wedding to fiancé David Foster, 69

She is rumoured to be getting married any day now.

And during the lead up to the big day, Katharine McPhee was pictured leaving the Dorchester hotel in London wearing gym gear on Tuesday afternoon.

The Broadway star, 34, showcased her athletic physique in a form-fitting black work out top, which she teamed with a pair of skintight blue gym leggings.

Work out ready: Katharine McPhee was pictured leaving the Dorchester hotel in London wearing gym gear on Tuesday afternoon

Work out ready: Katharine McPhee was pictured leaving the Dorchester hotel in London wearing gym gear on Tuesday afternoon

Opting for a sports luxe look, Katherine completed her outfit with a pair of white trainers and a selection of chunky silver bangles which she wore on her wrist.

The Waitress actress showcased her radiant complexion while sporting a make-up free look, and wearing her brunette tresses in a loose, natural style.

She carried her belongings in a Louis Vuitton shoulder bag, which may have held a change of clothes following her work out session.

Looking good: The Broadway star, 34, showcased her athletic physique in a form-fitting black work out top, which she teamed with a pair of skintight blue gym leggings
Looking good: The Broadway star, 34, showcased her athletic physique in a form-fitting black work out top, which she teamed with a pair of skintight blue gym leggings

Looking good: The Broadway star, 34, showcased her athletic physique in a form-fitting black work out top, which she teamed with a pair of skintight blue gym leggings

Stepping out: Opting for a sports luxe look, Katherine completed her outfit with a pair of white trainers and a selection of chunky silver bangles which she wore on her wrist

Stepping out: Opting for a sports luxe look, Katherine completed her outfit with a pair of white trainers and a selection of chunky silver bangles which she wore on her wrist

Prior to her outing in London, Katharine enjoyed idyllic trips to both Mykonos and Lake Como with her husband-to-be David Foster, 69.

The couple - who began dating in spring 2017 - were spotted getting a marriage license in Beverly Hills last month hinting they plan to tie the knot shortly. 

In the state of California, a marriage license expires 90 days after it's issued, suggesting that their ceremony will be imminent.   

Glowing: The Waitress actress showcased her radiant complexion while sporting a make-up free look, and wearing her brunette tresses in a loose, natural style
Peachy! Katharine's gym leggings accentuated her perky posterior

Glowing: The Waitress actress showcased her radiant complexion while sporting a make-up free look, and wearing her brunette tresses in a loose, natural style

Travelling in style! She carried her belongings in a Louis Vuitton shoulder bag, which may have held a change of clothes following her work out session

Travelling in style! She carried her belongings in a Louis Vuitton shoulder bag, which may have held a change of clothes following her work out session

Before their European getaway the actress had just finished her run in the musical Waitress in London, which concluded on June 15. 

At the end of her final performance Katharine told the audience: 'I would stay here and do the show longer, but my fiancé, who I’m about to marry, he’s endured enough separation. We both have,' she continued. 'FaceTime is our best friend.' 

Katharine was previously married to Nick Cokas for nearly five years before a divorce was finalized in February 2016, while David has been married four times and has five daughters and seven grandchildren. 

Romantic break: Prior to her outing in London, Katharine enjoyed idyllic trips to both Mykonos and Lake Como with her husband-to-be David Foster, 69
Romantic break: Prior to her outing in London, Katharine enjoyed idyllic trips to both Mykonos and Lake Como with her husband-to-be David Foster, 69

Romantic break: Prior to her outing in London, Katharine enjoyed idyllic trips to both Mykonos and Lake Como with her husband-to-be David Foster, 69

Wedding bells! The couple - who began dating in spring 2017 - were spotted getting a marriage license in Beverly Hills last month hinting they plan to tie the knot shortly

Wedding bells! The couple - who began dating in spring 2017 - were spotted getting a marriage license in Beverly Hills last month hinting they plan to tie the knot shortly

No time to waste! In the state of California, a marriage license expires 90 days after it's issued, suggesting that their ceremony will be imminent

No time to waste! In the state of California, a marriage license expires 90 days after it's issued, suggesting that their ceremony will be imminent

Time for love: Before their European getaway the actress had just finished her run in the musical Waitress in London, which concluded on June 15

Time for love: Before their European getaway the actress had just finished her run in the musical Waitress in London, which concluded on June 15

Katharine McPhee, 35, shows off her athletic physique in form-fitting gym leggings

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