The pop star will play the wife of murdered Maurizio Gucci, the grandson of the founder of the fashion brand.
Lady Gaga's revealed she spent 18-months in character for movie, House of Gucci and spoke in an Italian accent for half of it.
The 35-year-old - who's "proud to be Italian", plays the wife of murdered Maurizio Gucci, the grandson of the founder of the fashion brand.
72-year-old Patrizia Reggiani was convicted in 1995 of having him killed but was freed in 2016.