-- Us Weekly film critic Thelma Adams palling around with Trista and Ryan Sutter at the Us Weekly party celebrating the publication of Adams' first novel, Playdate, at the House of Hype LIVEstyle Lounge at the Sundance Film Festival in Park City, Utah.

-- Paul Rudd helping Rashida Jones pick out Rockport snow boots at the USANA/Kari Feinstein's Sundance Style Lounge in Park City, Utah.

-- Chris and Liam Hemsworth hanging out at the Samsung Galazy Tab Lift at the Sundance Film Festival in Park City, Utah.

PHOTOS: Celebrity siblings

-- Tori Spelling shopping with her husband Dean McDermott at Rochelle Gores Fredston's Arcade Boutique in L.A.

-- Terrence Howard getting touched up at the Sephora Beauty Studio at the Samsung Galaxy Tab Lift in Park City, Utah.

-- Vinny Piazza throwing his girlfriend Christina Brucato a surprise birthday bash at Studio XXI in NYC.

PHOTOS: More hot winter romances

-- Anne Heche with son Atlas picking up Wonderland Bakery cookies and Supergoop products at the Talent Resources Suite for Sundance in Park City, Utah.

-- Elizabeth Banks and her castmates toasting My Idiot Brother at the DIRECTV party for the buzzed-about comedy at the Sundance Film Festival in Park City, Utah.

-- Emma Roberts and Ellen Pompeo both sporting designer Gerard Darel at the Sundance Film Festival in Park City, Utah.

-- Penn Badgley hitting the slopes with Burton pro Danny Davis at Park City Mountain Resort in Park City, Utah.

PHOTOS: Gossip Girl stars, then and now

-- Julianne Hough bidding her way toward winning a decadent package for Miraval Spa at the Robert Mondavi Winery sponsored Joyful Heart Foundation event in L.A.

-- Kevin Connolly and Jerry Ferrara supporting Derek Jeter's Celebrity Golf Classic benefiting the Turn 2 Foundation at Hard Rock Cafe in Tampa, FL.

-- Angie Harmon and Jason Sehorn taking a mini family vacation to W Retreat & Spa- Vieques Island where the couple watched Robin Thicke perform and danced to DJ Mel DeBarge's tunes.

-- One Republic pouring Baileys into their coffee during their sound check for Friday night's big performance at the Sundance Film Festival in Park City, Utah.

-- Kevin Hart taking shots of Washington Apple with a female friend at the Living Room in the W Times Square in NYC.

-- Channing Tatum and wife Jenna Dewan staying in The Penthouse at The James Chicago.

PHOTOS: Stars' luxe digs

-- Carmelo Anthony and his Denver Nuggets teammates partying at Eden Lounge in Washington DC.

-- Adrian Grenier and Jeremy Piven attending The 2011 Creative Coalition Teachers Making a Difference Awards Luncheon presented by Bing in Park City, Utah.

-- Singer and songwriter Michael McDonald leaving the new JW Marriott Marquis Miami in downtown Miami.

-- Lucy Punch hanging with Edi Gathegi at Tamsin Lonsdale's The Supper Club Escape to India Party sponsored by Bombay Sapphire at Schoos Design in West Hollywood.

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