She accessorized with Anito Ko glittering jewelry and Giuseppe Zanotti black platform heels.

The star is there to support her friend Beyonce, who attended her own The Eras movie premiere in LA earlier this year and flew into the UK capital on her private jet.

Beyonce made her grand entrance wearing a fitted black blazer dress and little else, accompanied by her fashionable daughter Blue Ivy, 11.

Beyonce’s gown hugged her curves and had a low neckline.

The actress also wore her blonde hair in an elegant half-up, half-down style, which prompted her to be accused of ‘trying to be white’ earlier this week.

She exuded confidence as she posed for photographers with her hands at her sides and her curvy legs crossed.

Blue, who was a dancer on Beyonce’s Renaissance tour, wore a one-shouldered black gown with structured shoulders and futuristic shades.

At the star-studded premiere, Taylor and Beyonce were joined by BFF Blake Lively, Destiny’s Child bandmate Michelle Williams, and Will.i.am.

‘Taylor and Beyonce have been chatting a lot since Beyonce surprised her at her Eras film premiere,’ a source close to Taylor told DailyMail.com. They may appear to be unlikely friends, but they truly understand each other. Both are at the top of their game in a world of imitators and wannabes.

‘When she shut down Kanye West in 2009, Beyonce cemented such a special place in Taylor’s heart. They both know that karma took care of Kanye exactly as they predicted.

Taylor was not the powerhouse she is today at the time. It was just so Beyonce, and ever since that moment, the two of them have celebrated each other’s success. Their music is quite distinct. Their fans are vastly different, as are their lives.

The singer has been in Kansas City with boyfriend Travis Kelce.

‘However, one thing they have in common is that they are both masters of their trade. Taylor would do anything for Beyonce, and she will go to bat for this woman until the day she dies.’

According to The Sun, it was “the most closely guarded premiere this year” because it brought Swifties and the Beyhive together.

‘Because of the stars’ fan bases, crowd control measures were implemented to ensure everyone’s safety,’ they explained.

This comes after it was revealed that Taylor and Travis will move in together permanently if their ‘practice run’ at his $6 million Kansas City mansion goes well, according to insiders, who claim the’soulmates’ have discussed starting a family.

On Tuesday, a moving truck was spotted outside the NFL star’s new home, just one day after Taylor, 33, completed the South American leg of her Eras tour with a sold-out concert in Brazil, with furniture and other items pictured inside.

The couple, who began dating in September, are said to be’obsessed’ with each other, flying to and from his games and her concerts to spend time together.