United Kingdom, Oct. 18 -- Victoria Beckham declares Jackie Apostel as the "most beautiful soul".

The 51-year-old fashion designer-and-singer took to her Instagram Stories on Saturday (18.10.25) to post a series of gushing messages for her 20-year-old son Cruz Beckham's girlfriend, on what is her 30th birthday.

Writing over a photo of her with the songwriter dressed in black gowns in the back of a car, Victoria wrote: "To the sweetest, kindest, most beautiful soul.

"We all love you soooooo much!!! (sic)"

In a second Instagram Story, the Spice Girls group member and Jackie can be seen riding in the back of a car while wearing matching gray suits.

She penned: "Happy birthday!!!!! Love you!!! (sic)"

And in Victoria's third story, Jacki...