The hitmaker’s ample assets were impossible to miss as she posed on the red carpet at the European launch of the franchise’s latest blockbuster at London’s Royal Albert Hall.

The 29-year-old stole the spotlight away from the movie’s stars as she enjoyed a rare outing with her boyfriend Josh Ginnelly.

Alexandra looked dangerously close to a wardrobe malfunction thanks to her eye-popping outfit as she prepares for the BBC show’s finale this weekend.

Wearing her dark tresses down, the singer exposed serious cleavage in a lace body, which was see-through throughout.

Alexandra stuck to the legs or chest rule and teamed her saucy get-up with a green velvet trouser suit.

The star’s incredible figure was still very much on show in the blazer and flares, which she polished off with patent stilettos.

Alexandra’s beau, who she has been dating since April last year, looked dapper in a classic black tie and matching two-piece.

Following on from 2015’s The Force Awakens, Episode VIII The Last Jedi continues straight after Rey (played by Daisy Ridley) was seen tracking down Luke Skywalker (Mark Hamill).

The actress opted for a black leather dress for the highly-anticipated screening, complete with an asymmetric, choker neckline and a full skirt.

Star Wars: The Last Jedi opens in cinemas on Friday.