Michelle Williams Takes the Plunge at the 2017 Oscars

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Michelle Williams at the 2017 Oscars.

The actress is nominated for her role in 'Manchester by the Sea.'

Michelle Williams stepped out in gown with a plunging neckline and embellished skirt at the 2017 Oscars on Sunday.

The actress, styled by Kate Young, stuck with her go-to red carpet brand Louis Vuitton for the awards ceremony. Williams was accompanied by her bestie, Busy Philipps, who was wearing an Elizabeth Kennedy dress, on the red carpet.

Williams is nominated for best actress in a supporting role for her work in Manchester by the Sea, going up against fellow nominees Naomie Harris (Moonlight), Nicole Kidman (Lion), Octavia Spencer (Hidden Figures) and Viola Davis (Fences).

The 89th Academy Awards, hosted by Jimmy Kimmel, airs live on ABC at 5:30 p.m. PT/8:30 p.m. ET.