Who says dressing up has to be a highbrow activity? This week the stars were all about keeping fashion fun. While Rihanna [1] wasn't afraid to take a spill in skis, Lupita Nyong'o spread her wings with a butterfly headpiece.
After all, though great style is serious business, it's nice to see Hollywood still has a sense of humor. See this week's best photos, and don't forget to share the love and follow POPSUGAR Fashion on Instagram [2], Facebook [3], and Twitter [4]!
Lupita Nyong'o
Lupita had a hair-raising reaction to this butterfly headpiece.
Lindsay Lohan
From Sarah Jessica Parker [6]'s flirty floral dress to Lady Gaga [7]'s full-body fishnet, this group tried out every style.
Emmy Rossum
Emmy looked chic at the beach in this white one-piece.
Nicole Richie
Nicole was one lucky lady.
Vanessa Hudgens
Vanessa's boho style was perfect for life on the road.
Lena Dunham
Lena wasn't afraid to wear her show on her shirt.
Rita Ora
Rita went for a dramatic look in thigh-high sandals and a fur coat.
Rihanna
Rihanna [14] may have taken a spill, but at least she did it in style.
Taylor Swift
Taylor and Lorde [16] coordinated their outfits for a day at the beach.
Lorde
Lorde [18] rocked this dramatic layered look in Stockholm, Sweden.
Hailee Steinfeld
Hailee shared these chic snapshots from a recent photo shoot.
Joy Bryant
Joy was the most stylish snowboarder we've ever seen.
Kerry Washington
This dazzling ring was Kerry's brightest accessory at the NAACP Image Awards.
Olivia Wilde
Olivia showed off her baby bump in a bright maxi dress.
Mindy Kaling
Mindy mastered layering in her bright blue-and-green ensemble.
Sophia Bush
Sophia stood out in the crowd in a Winter white dress.
Sarah Hyland
The (modern) family that dresses together stays together.
Kat Dennings
Kat was dressed to the nines with costar Beth Behrs.