Rod Stewart, 81, and his wife Penny Lancaster, 54, put on a loved-up display as they attend the Finding Harmony: A King's Vision premiere

Rod Stewart and his wife Penny Lancaster put on a loved-up display as they attend the Finding Harmony: A King's Vision premiere. 

The rocker, 81, and his model wife, 54, were among the stars who made an appearance at the premiere, held at Windsor Castle, on Wednesday.    

Arriving on the red carpet, Rod wore a white lace shirt with a pair of pinstripe trousers and a tailcoat blazer.

He paired the quirky tuxedo with a religious cross necklace and a pair of patent shoes as he put his arm around Penny.  

Penny meanwhile looked incredible for the premiere in a pink and brown floral chiffon gown featuring tiered ruffles.

She paired the gown with a black velvet fringed shawl and red patent stilettos, as well as a miniature black leather handbag.  

Back in December, Penny broke down in tears as she recounted her and Rod's emotional love story in a new BBC festive special. 

The couple met back in 1999 when Penny was a student at Barking College, and Rod was performing.

After welcoming their first son Alistair, 20, in 2005 the pair went on to tie the knot in 2007 before welcoming their second son Aiden, 14, in 2011. 

And looking back at their love story for the first episode of series two of Anita Rani's My Life At Christmas, Penny was overcome with emotion as she repeatedly broke down throughout the interview, while Rod even shed a tear himself. 

Discussing how they first met, Penny revealed it wasn't until nine months after exchanging numbers that Rod reached out to her.

They originally met in the wake of Rod's divorce to his second wife Rachel Hunter, who he was married to from 1990 until 2006. 

And anticipating that his best pal wasn't ready to meet the love of his life yet, Rod's band leader Carmine Appice withheld Penny's number from the musician until he was in a better place. 

Recalling the story, Rod explained: 'He was an absolute gentleman, he was band leader and bass player and he kept her telephone away from me. 

'He didn't think I was in the right position because I had just got a divorce and didn't know if I was coming or going and he said I will give it to you when I think you are ready.'

He joked: 'I should of fired him but I couldn't!'

Penny then began to well up with tears as she added: 'Carmine had kept that telephone number away from him. 

'He said "you are going to go a bit crazy over the summer and let your hair down and Penny seems like a nice girl".'

After hearing nothing from her future husband, she explained: 'I really thought that was the last I would see of Rod. I remember processing those photos I took of Rod [at his concert] and thinking, what a lovely memory and that was that.'

However once Rod was ready he reached out and the pair began dating and Penny was welcomed into his blended family.  

Prior to welcoming two sons with Penny, Rod was already a father to six children from previous relationships. 

The star put his first child up for adoption, Sarah, 62, who he welcomed with his ex-girlfriend Susannah Boffey when he was just 17, he later formed a relationship with her.

He then had daughter Kimberly, 46, and son Sean, 45, with his ex-wife Alana Stewart and a daughter Ruby, 38, with his ex-girlfriend Kelly Emberg.

While married to his ex-wife Rachel Hunter, the Faces frontman had two more children, Renee, 33, and Liam, 31.