Rod Stewart, 74, puts on a jolly display as he and wife Penny Lancaster, 48, ...

They have been happily married since 2007, and share two sons - Alastair, 13, and eight-year-old Aidan.

And Rod Stewart, 74, and his wife Penny Lancaster, 48, proved they still love to let loose as they hopped onto a yacht for a white party in St. Tropez on Sunday.

The rock legend put on a jolly display as he made his way into the luxury vessel's gangway decked out in a head-to-toe white ensemble - the required dress code for the evenings festivities. 

Forever young: Rod Stewart, 74, and his wife Penny Lancaster, 48, proved they still love to let loose as they hopped onto a yacht for a white party in St. Tropez on Sunday

 Forever young: Rod Stewart, 74, and his wife Penny Lancaster, 48, proved they still love to let loose as they hopped onto a yacht for a white party in St. Tropez on Sunday

Rod modelled a white linen shirt tucked into skinny jeans that featured a frayed hemline.

The Maggie May hit maker left his shirt partially unbuttoned to flash his chest and neck jewellery.

He completed his party look with bright white brogues and struggled to contain his excitement as he raised his arm in the air prior to setting sail. 

Sea legs: The husband and wife appeared happy as they walked along arm in arm

Sea legs: The husband and wife appeared happy as they walked along arm in arm 

Former model Penny was a vision in a satin maxi dress that cinched in at the waist thanks to its elasticated detail.

Looking every inch a goddess, the Loose Women panellist accessorised with a dainty gold chain around her neck that was decorated with small pendants and strolled along the waterfront in gold sandals.

The statuesque left her golden locks down in a relaxed style and linked arms with her husband as they made their way to the party venue. 

Happy chap: The rock legend put on a jolly display as he made his way into the luxury vessel's gangway decked out in a head-to-toe white ensemble

Happy chap: The rock legend put on a jolly display as he made his way into the luxury vessel's gangway decked out in a head-to-toe white ensemble

Style: Rod modelled a white linen shirt tucked into skinny jeans that featured a frayed hemline

Style: Rod modelled a white linen shirt tucked into skinny jeans that featured a frayed hemline

Do Ya Think I'm Sexy? The hit maker left his shirt partially unbuttoned to flash his chest

Do Ya Think I'm Sexy? The hit maker left his shirt partially unbuttoned to flash his chest

High-spirits: He struggled to contain his excitement as he raised his arm in the air prior to setting sail

High-spirits: He struggled to contain his excitement as he raised his arm in the air prior to setting sail

Pretty: Former model Penny was a vision in a satin maxi dress that cinched in at the waist thanks to its elasticated detail

Pretty: Former model Penny was a vision in a satin maxi dress that cinched in at the waist thanks to its elasticated detail

Penny and Rod's glamorous getaway comes after she recently revealed she and Rod considered expanding their brood through adoption during a candid discussion on Loose Women last month.

Joined by fellow panellists Coleen Nolan, Brenda Edwards and Jane Moore, the former model admitted while the power couple pondered on growing their family, their children weren't keen on the idea, and insisted on 'getting

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