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TORONTO, ON - SEPTEMBER 09: Bradley Cooper (L) and Lady Gaga attend the "A Star Is Born" premiere during 2018 Toronto International Film Festival at Roy Thomson Hall on September 9, 2018 in Toronto, Canada. (Photo by Kevin Winter/WireImage)

TORONTO, ON - SEPTEMBER 09:  Bradley Cooper (L) and Lady Gaga attend the "A Star Is Born" premiere during 2018 Toronto International Film Festival at Roy Thomson Hall on September 9, 2018 in Toronto, Canada.  (Photo by Kevin Winter/WireImage)

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VENICE, ITALY - AUGUST 31: Bradley Cooper (L) and Lady Gaga walk the red carpet ahead of the 'A Star Is Born' screening during the 75th Venice Film Festival at Sala Grande on August 31, 2018 in Venice, Italy. (Photo by Vittorio Zunino Celotto/Getty Images)

VENICE, ITALY - AUGUST 31:  Bradley Cooper (L) and Lady Gaga walk the red carpet ahead of the 'A Star Is Born' screening during the 75th Venice Film Festival at Sala Grande on August 31, 2018 in Venice, Italy.  (Photo by Vittorio Zunino Celotto/Getty Images)

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VENICE, ITALY - AUGUST 31: Bradley Cooper and Lady Gaga walk the red carpet ahead of the 'A Star Is Born Red' screening during the 75th Venice Film Festival at Sala Grande on August 31, 2018 in Venice, Italy. (Photo by Jacopo Raule/FilmMagic)

VENICE, ITALY - AUGUST 31:  Bradley Cooper and Lady Gaga walk the red carpet ahead of the 'A Star Is Born Red' screening during the 75th Venice Film Festival at Sala Grande on August 31, 2018 in Venice, Italy.  (Photo by Jacopo Raule/FilmMagic)

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VENICE, ITALY - AUGUST 31: Lady Gaga and Bradley Cooper attend 'A Star Is Born' photocall during the 75th Venice Film Festival at Sala Casino on August 31, 2018 in Venice, Italy. (Photo by Vittorio Zunino Celotto/Getty Images)

VENICE, ITALY - AUGUST 31:  Lady Gaga and Bradley Cooper attend 'A Star Is Born' photocall during the 75th Venice Film Festival at Sala Casino on August 31, 2018 in Venice, Italy.  (Photo by Vittorio Zunino Celotto/Getty Images)

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TORONTO, ON - SEPTEMBER 09: Bradley Cooper (L) and Lady Gaga attend the "A Star Is Born" premiere during 2018 Toronto International Film Festival at Roy Thomson Hall on September 9, 2018 in Toronto, Canada. (Photo by Michael Loccisano/Getty Images)

TORONTO, ON - SEPTEMBER 09:  Bradley Cooper (L) and Lady Gaga attend the "A Star Is Born" premiere during 2018 Toronto International Film Festival at Roy Thomson Hall on September 9, 2018 in Toronto, Canada.  (Photo by Michael Loccisano/Getty Images)