Walking the red carpet at Microsoft Theater in Los Angeles, the "Sinner" star looked stunning wearing a white, strapless ballgown as her singer husband adorably looked on.
Timberlake, who's supporting his wife on her lead actress nomination, opened up to E! about how happy he is for his wife.
"I'm just so proud to be here and see this for her," he told them on Monday.
Along with Timberlake and Biel, the carpet was jam packed with other celebrity couples.
"This Is Us" leading men Sterling K. Brown and Justin Hartley made a splash with their wives, real-life "Stranger Things" couple Natalia Dyer and Charlie Heaton heated up the carpet while Scarlett Johansson was full of smiles with her beau, Colin Jost.