Katy Perry takes stab at Meghan Markle's 'ill-fitting' wedding dress

Prince Harry and Meghan Markle leave St George's Chapel following their wedding ceremony. Photo / AP

She captivated the world when she exchanged vows with Prince Harry in a stunning yet simple white wedding dress.

But, as it turns out, not everybody was in love with Meghan Markle's Givenchy gown.

Pop star Katy Perry, 33, had a thing or two to say about the outfit, telling Entertainment Tonight she thinks Meghan, 36, needed "one more fitting".

"I would have done one more fitting!" Katy advised when asked about her opinion on the dress, giving the camera a mischievous wink.

Meghan tied the knot with Prince Harry at St George's Chapel in Windsor Castle on Saturday, just months after the couple announced their engagement.

Couture label Ralph & Russo was touted as the hot favourite to design the dress but the bride nodded to her husband's heritage and her self-proclaimed feminist ideals by choosing British designer Clare Waight Keller, who joined the house of Givenchy last year as its first female artistic director.

Meghan wore the Queen Mary Diamond Bandeau tiara. Photo / AP

Featuring an open bateau neckline and a triple silk organza underskirt, the minimalistic design was paired with the Queen Mary Diamond Bandeau tiara, which was made in 1932 and features a centre detachable brooch made of 10 diamonds dating back to 1893.

Sketches of The Duchess of Sussex’s #RoyalWedding dress, designed by Clare Waight Keller, have been released.

The Duchess and Ms. Waight Keller worked closely together on the design, epitomising a timeless minimal elegance referencing the codes of the iconic House of Givenchy. pic.twitter.com/A9ZFKVZmUz

— The Duke and Duchess of Cambridge (@KensingtonRoyal) May 20, 2018

Her 4.8m Cathedral-length veil was also a nod to British heritage and featured a trim of hand-embroidered flowers from each of the 53 countries in the Commonwealth.

Meghan Markle's veil featured delicate embroidery incorporating flowers from the 53 Commonwealth countries. Photo / AP

Keller told People that the idea came to her after several conversations with Meghan about what "story" she wanted to tell through her wedding.

"There was a conversation early on about the story that we were going to tell through this wedding," she said.

"Part of what I wanted to do was talk to her about what type of stories they could be. The fact that she and Prince Harry will be working a lot in the Commonwealth was something that I thought was really intriguing and could be something built on to be part of the day."

Harry and Meghan's first kiss as husband and wife on the steps of St George's Chapel. Photo / AP