Katy Perry, Taylor Swift & More Of This Week's Best Dressed

On Thursday, performer Katy Perry arrived to the world premiere of “Katy Perry: The Prismatic World Tour” looking glamorous in a Balenciaga tuxedo dress from the Pre-Fall collections that was paired with Giambattista Valli Fall 2015 knee-high, lace-up boots. Katy wasn’t the only one sporting a menswear-inspired outfit this week: in her first outing since having a baby six weeks ago, actress Liv Tyler wore head-to-toe Givenchy at the opening of the Rockette’s Spring Spectacular, while actress Christina Hendricks arrived to a taping of the “Late Night with Seth Meyers” in a navy double-breasted pinstripe Max Mara suit. Kelly Rowland also flaunted her impressive post-baby body in a blue and white striped crop top and white skirt. Speaking of crop tops, fellow musician Taylor Swift made a surprise appearance at Kenny Chesney’s concert wearing a gray Elizabeth and James that showed off her shredded abs. Who else made the Best Dressed cut this week? Click through to find out!

More from Yahoo Style:
Rihanna Ditches Cutoffs to Channel Audrey Hepburn
Pippa Middleton, Lily James & More of This Week’s Best Dressed