Bradley Cooper had a special plus-one for his latest Hollywood event! The Oscar nominee enjoyed an adorable father-daughter outing with 6-year-old Lea De Seine Shayk Cooper at the "Maestro" premiere in Los Angeles on Dec. 12, where the pair posed with Bradley's longtime friend and "A Star Is Born" castmate Lady Gaga. The music superstar's appearance marked a friendly reunion for her and Bradley five years after their acclaimed film, and the pals also posed with "Maestro" star Carey Mulligan and more.
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