The “Good Place” star, who is nominated for Best Performance by an Actress in a Television Series, looked stunning in a blush, Grecian-style gown with a plunging neckline and flowing, floor-length skirt.
At one point, Bell twirled to display the gown to its full effect, while Shepard got in the fun, too.
People on Twitter applauded the look.
Earlier in the night, Bell gave fans a sneak peek at the look on Instagram, where she seemed indecisive about which shoes to pair with the gown.
It was a fitting finale to the week for Shepard, who celebrated his 44th birthday on Jan. 2.