Justin Bieber had the internet doing a double-take after hopping on Instagram with a series of eyebrow-raising photos. The pop star ditched the fit and hit the wilderness on a Segway wearing nothing but his white Calvin Klein briefs. There was no caption, no context-just vibes.Related: Clock It! Sexyy Red Checks Trolls For Jumping To Conclusions About Her Studio Link-Up With Justin Bieber (VIDEO)Justin Bieber Pops Out On The 'Gram In Just His CalvinsOn Wednesday, Sept. 10, Justin Bieber took to Instagram to share a carousel of photos of himself.