Olivia Rodrigo left little to the imagination in a very risque gown she wore to the gala in Los Angeles. The 18-year-old singer attended the opening of the Academy Museum of Motion Pictures Opening Gala on Saturday night and stole the spotlight in a strapless black Saint Laurent dress by Anthony Vaccarello. The sleek dress featured a thigh-high slit and a plunging, sculptural neckline that highlighted her cleavage.