Lady Gaga, Adam Driver, and Jared Leto sizzled at the 'House of Gucci' world premiere. Here are the best shots from the red carpet.

(L-R) Jared Leto, Adam Driver, and Lady Gaga at the "House of Gucci" world premiere in London.Anadolu Agency/Getty

• Check out what Lady Gaga, Adam Driver, Jared Leto and the rest of the "House of Gucci" stars wore.
• The movie, directed by Ridley Scott, delves into the story behind the famed Italian fashion house.

Lady Gaga plays Patrizia Reggiani in the movie, the ex-wife of Maurizio Gucci, who is played by Adam Driver.

Lady Gaga.      Karwai Tang/WireImage/Getty

Gaga said she spoke in an Italian accent for 9 months to stay in character during the movie.

Lady Gaga.      John Phillips/Getty

Source: British Vogue.

Adam Driver plays Maurizio Gucci, who was the head of the Gucci empire and ex-husband of Patrizia Reggiani.

Adam Driver.      John Pillips/Getty

Jared Leto plays another member of the Gucci empire, Paolo Gucci.

Jared Leto.      Anadolu Agency/Getty

Salma Hayek plays Giuseppina "Pina" Auriemma, the woman who helps Patrizia plan her takedown of the Gucci empire.

Salma Hayek.      Anadolu Agency/Getty

Jeremy Irons plays Rodolfo Gucci, the actor within the Gucci family.

Jeremy Irons.      Karwai Tang/WireImage/Getty

Camille Cottin plays Paola Franchi, who had a relationship with Maurizio after he split with Patrizia.

Camille Cottin.      Karwai Tang/WireImage/Getty

Jack Huston plays Domenico De Sole, the former president and CEO of Gucci Group.

Jack Huston.      Lia Toby/Getty

Mădălina Diana Ghenea plays legendary Italian actress Sophia Loren.

Mădălina Diana Ghenea.      Jeff Spicer/Getty