Kendall Jenner and Justin Bieber are apparently no strangers to a bit of healthy competition.
The young duo both attended an event to promote Calvin Klein in Hong Kong yesterday, and appeared to have fun while doing so.
Both stars appeared on the red carpet to pose for photos, and while Kendall struck numerous supermodel-esque poses, Justin's time in front of the cameras included a topless stint in which he showed off his rock-hard abs.
Kendall was of course dressed head-to-toe in the brand, wearing a black leather zip detail mini teamed with a grey ribbed top and barely there black sandals.
After all that hard work, Kendall and Justin let loose and had a 'cartwheel competition', which was caught on Kendall's Instagram.
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The GLAMOUR office is today left wondering who snagged the title of cartwheel king or queen…
