Kate Hudson, Brother Oliver Hudson Compete in the Weirdest, Most Awesome “Who Wore It Best?” (Think Spandex!)

Oliver Hudson and Kate Hudson
Kate Hudson and her brother Oliver went head-to-head in a "Who Wore It Best?" competition for the ages Paul Zimmerman/WireImage

Please don't make Us choose! Oliver Hudson took to Instagram on Thursday, Sept. 3, to share a photo of himself and sister Kate Hudson competing in what might be the weirdest (and most awesome) round of "Who Wore It Best?" ever.

PHOTOS: Who wore it best, red carpet edition

The side-by-side pic shows the Nashville star, 38, and the Wish I Was Here actress, 36, modeling pieces from Kate's fitness line, Fabletics, while standing on what looks like a gravel driveway.

On the left, Oliver rocks a skintight, one-piece Snowdrop Leotard in the brand's "Romantic Print," while on the right, Kate shows off her enviable physique in black capris, a fuchsia sports bra, and a "Romantic Print" jacket left unzipped to spotlight her impossibly flat abs.

PHOTOS: Who wore it best, street style edition

Who wore it best? Humanity has spoken.. @fabletics @fl2 @usweekly

A photo posted by Oliver Hudson (@theoliverhudson) on Sep 3, 2015 at 12:56pm PDT

"Who wore it best?" Oliver captioned the photo, which showed him with 99 percent of the vote, and Kate with just 1 percent. "Humanity has spoken…@fabletics @fl2 @usweekly"

Kate first launched Fabletics back in 2013. Recently, though, she teamed up with Oliver on a men's line, FL2, which debuted earlier this summer.

"Oliver is a perfect example of a modern guy — he's a working dad with a busy life," the Oscar nominee told The Hollywood Reporter of her brother in June. "FL2 gives him comfortable, good-looking gear that suits his active lifestyle."

Kate definitely knows clothes — active and otherwise. The bohemian bombshell is one of the 10 honorees on Us Weekly's first-ever Best Dressed List, which was judged by such beauty and fashion gurus as Naomi Campbell, Lauren Conrad, Frederic Fekkai, Diane von Furstenberg, Valentino Garavani, Heidi Klum, Chris McMillan, and Zac Posen

Pick up the new issue of Us for the entire list! And see more of the Best Dressed winners and judges here.

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