Kate Middleton channels Princess Diana power dressing during Queen's Platinum Jubilee celebrations

Kate Middleton opted for a ivory blazer and skirt for the Queen's Platinum Jubilee Concert last night, echoing the signature style of her late mother-in-law Princess Diana. 

• The Duchess of Cambridge attended the star-studded BBC Party at the Palace last night with her family.
• Duchess Catherine wore a belted white blazer with a matching skirt and simple, elegant jewelry, with a style nod to one of Princess Diana's most famous looks. 
• In other royal news, Lady Louise's dress: Young royal adorably matches Sophie Wessex at Platinum Jubilee event, in Kate Middleton's favorite brand.

Saturday was a busy day for Kate Middleton, who was pictured earlier stepping out in Cardiff in a bright red coat in tribute to the Welsh flag. Kate Middleton's red coat was from London brand Eponine, while her simple earrings were from Welsh brand, Spells of Love. 

After a quick outfit change, the Duchess was snapped with a different look altogether - a belted ivory blazer and matching skirt that looked effortlessly chic and stylish. 

Duchess Catherine wore simple accessories to complete the look for the Platinum Jubilee Concert, including a small cross necklace and teardrop-shaped earrings. Her hair was styled with loose waves over one shoulder for a soft and relaxed look. 

Duchess Catherine's sartorial choices often include a nod to the late Princess Diana, with William's wife echoing her classic, timeless style. A white blazer was a staple part of Diana's capsule wardrobe, and she too often styled the look with a simple waist belt. 

In a tribute to the British flag, the rest of the family wore outfits in the colors of the British flag, with a dark navy suit for Prince George and a ruffled red dress and cardigan for Princess Charlotte.

It was a busy day for the Cambridge children, with Princess Charlotte showing her musical skills in Cardiff earlier that day by conducting an orchestra, and both children getting up on stage to play the drums.

The BBC Party in the Park took place at Buckingham Palace and rounded off a week of celebrations for Her Majesty's 70-year-reign.

The Cambridge family were pictured enjoying the Platinum Jubilee concert with big smiles, waving British flags and singing along.

It was a star studded event, with Mike Tindall, Sir Keir Starmer, Sadiq Khan, Mayor of London, and Prime Minister Boris Johnson pictured in close range to the Cambridge family.

While the Queen wasn't able to make the even herself, the extended Royal Family were all in attendance, with the Queen's grandchildren, the Queen's great-grandchildren coming together to celebrate Her Majesty.