"Insurgent" stars Shailene Woodley and Ansel Elgort suited up for GQ Men of the Year Awards but the 23-year-old actress couldn't help but ham it up in front of the cameras in the red carpet event in Los Angeles last Thursday.

Shailene Woodley, who also starred opposite Ansel Elgort in "The Fault in Our Stars," wore a black tuxedo in keeping with the macho theme of the event held at Chateau Marmont.

"While she may have gone for a boyish look, Shailene added some sex appeal by going without a shirt beneath her velvet suit," MailOnline reported.

Shailene Woodley, meanwhile, certainly knows how to have fun as she put on a funny face at the camera.

Meanwhile, Ansel Elgort, 20, looked very sharp in a pin-striped suit along with a black tie and was quite prim and proper for the event, not minding the antics of his co-star and friend.

Actress Shailene Woodley was recognized by the magazine on its cover for GQ's Men of the Year issue as the female breakout star. She's the only woman in the six covers rolled out by the magazine for its December issue, joining Dave Chappelle, Chris Pratt, Steve Carrell and Michael Sam.

Ansel Elgort was most recently reported to be dating Sarah Hyland of "Modern Family" after he was snapped getting cozy with the actress on her birthday bash recently. The Instagram photo posted by the actress showed all her women BFFs, and then there's the 20-year-old actor cuddling with her.

Apart from rumors linking her to Ansel Elgort, Shailene Woodley was also rumored to be dating Hawaiian folk singer Nahko Bear after they were spotted together on the Hamakua Coast of the Big Island, said Yahoo News.

The article noted that Nahko Bear, who fronts the band Nahko and Medicine for the People, is more suited to the free-spirit character of Shailene Woodley than Ansel Elgort. The actress, however, has yet to respond to the dating rumors.