The Saint Laurent fashion show in Los Angeles was a star-packed event, with Hollywood stars, musicians and fashionistas all hitting the red carpet ahead of the presentation.

Jane Fonda, Sam Smith, Demi Moore, Courtney Love and Dakota Fanning were joined by Lady Gaga, Justin Bieber and Zac Efron for the show at the Palladium in Los Angeles.

Jane Fonda arrives at Saint Laurent at the Palladium at the Hollywood Palladium
Jane Fonda rocked a bedazzled blazer for the catwalk show (Rich Fury/AP)

It is designer Hedi Slimane’s 14th collection for Saint Laurent and he took over the whole of the Hollywood theatre for the occasion.

Sam Smith, from left, Ellen DeGeneres and Portia de Rossi attend Saint Laurent at the Palladium
Sam Smith cosied up to Ellen De Generes and her wife Portia de Rossi (Matt Sayles/AP)

Lots of the stars rocked Saint Laurent’s distinctive jackets, with Gaga sporting a gold sparkly number while Justin Bieber opted for a bright red patterned creation.

Justin Bieber arrives at Saint Laurent at the Palladium at the Hollywood Palladium on Wednesday, Feb. 10, 2016, in Los Angeles. (Photo by Rich Fury/Invision/AP)
Justin Bieber smolders for the camera (Rich Fury/AP)

The brand showed their fall 2016 men’s collection and part 1 of the women’s collection at the Hollywood show.

Part 2 of the women’s collection will be shown on March 7 during Paris Fashion Week.

Zac Efron, left, and Will Peltz attend Saint Laurent at the Palladium
Zac Efron attended the show with Unfriended star Will Peltz (Matt Sayles/AP)

The designer first announced the unconventional Los Angeles show on Instagram a month ago.

The show was timed to coincide with the Grammy Awards, which take place in Los Angeles on February 15.