After arriving in Park City to promote his film "Burden," the singer Usher said "Yeah!" to hitting up the scene. 

While everyone else was watching the NFL Championship games on Sunday night (Jan. 21), Usher shed his fur coat and indoor sunglasses to jump on the dance floor as Diplo spun at the "Skate Kitchen" party. The action went down at the DirecTV Lodge on Main St., festival sponsor AT&T's prime venue. 

Elsewhere, Chloë Sevigny caused ripples in the opening days of the festival for her turn in the Lizzie Borden film, "Lizzie."   Also Read: ‘Lizzie’ Film Review: Chloë Sevigny Makes the Infamous Killer a Rebel With a Cause

Jake Gyllenhaal arrived at the Eccles in an Acura MDX for the premiere of "Wildlife." Also Read: ‘Wildlife’ Review: Paul Dano’s Directorial Debut Is an Austere Portrait of a Family in Crisis

Jim Parsons is part of the all-star cast of "A Kid Like Jake." The parenting drama's ensemble includes Claire Danes, newly minted Oscar nominee Octavia Spencer, the terrifying Emmy winner from "The Handmaid's Tale" Ann Dowd, Amy Landecker, and...  

Priyanka Chopra.

Naomi Watts found the secret to dry feet amid a flood of gray slush soaking Park City.  

Tom Felton brought the message of #TimesUp to high altitudes.

Chloe Grace Moretz arrives in style while promoting her title role in the "Miseducation of Cameron Post." She plays a 1993 high schooler caught having sex with the prom queen, then forced into a gay conversion therapy center.  

Ethan Hawke, with two movies at the festival, still found time for a musical jam at the premiere party for "Blaze." Also Read: ‘Juliet, Naked’ Review: Nick Hornby Adaptation Is a Rock ‘n’ Roll Charmer

TheWrap's Party Report at Sundance is sponsored by Acura, the presenting sponsor of the 2018 Sundance Film Festival. Keep up with real-time images of the scene in Park City on @SundanceParties on Instagram. The Party Report and this writer are not affiliated with nor endorsed by the Sundance Institute or the Sundance Film Festival.  

For more celebrity sightings at TheWrap's HQ inside the Acura Festival Village, click over here: Also Read: Sundance Portraits From TheWrap at Acura Studios With Keira Knightley, Robert Pattinson and More (Photos)