August is officially upon us, and to celebrate all its hot and humid glory, Hollywood’s boldest and brightest are stepping out in their boldest and brightest fashions.
This week, the red carpet saw no shortage of deep necklines, fun patterns, bright colors and, in Renée Zellwegger’s case, puffy sleeves.
Lena Dunham looked on fire in orange sequins and feathers at the London premiere of “Once Upon A Time... In Hollywood.” The week also featured quite possibly the fanciest pajama set we’ve seen. And we even got a tie-dye moment, courtesy of Jason Sudeikis.
Check out the 10 wildest celebrity fashion looks of the week below.

Carly Rae Jepsen
Carly Rae Jepsen performing during her "Dedicated" tour in Atlanta on July 28. Paras Griffin via Getty Images
Jason Sudeikis
Jason Sudeikis at the premiere of "Driven" in Hollywood, California, on July 29. Jon Kopaloff via Getty Images
Lena Dunham in 16Arlington and Jimmy Choo
Lena Dunham at the U.K. premiere of "Once Upon A Time... In Hollywood" in London on July 30. David M. Benett via Getty Images
Marlo Hampton
Marlo Hampton at a "Brian Banks" screening in Atlanta on July 30. Paras Griffin via Getty Images
Deanne Reynolds
Deanne Reynolds at the premiere of "Them That Follow" in Los Angeles on July 30. Amanda Edwards via Getty Images
Kaitlyn Dever in Andrew Gn
Kaitlyn Dever at the premiere of "Them That Follow" in Los Angeles on July 30. Amanda Edwards via Getty Images
Renée Zellweger
Renée Zellweger as Moet & Chandon at the Hollywood Foreign Press Association's Grants Banquet in Beverly Hills, California, on July 31. Michael Kovac via Getty Images
Fredrik Eklund
Fredrik Eklund visits "Extra" in New York on July 31. Jamie McCarthy via Getty Images
Kerry Washington in Elie Saab
Kerry Washington attends Hollywood Foreign Press Association's Annual Grants Banquet in Beverly Hills, California, on July 31. Kevin Winter via Getty Images