Kevin Durant -- Blowin' Smoke

AppId is over the quota
AppId is over the quota

With 46 days 'til the NBA's opening day, Kevin Durant is in hardcore relax-mode -- with hookah pipes and Segway scooters.  

The 24-year-old Oklahoma City Thunder superstar was rollin' around Barcelona yesterday on the two-wheeled machine (sportin' a helmet for safety) ... before chillin' out at a smoke shop.

Durant seems to be a big fan of hookah shops -- he's been spotted puffin' away all over the world in places like Chicago, Minnesota and even Hong Kong.

Kevin's penchant for puffin' might also explain why he was chillin' with Justin Bieber recently -- those guys might have more in common than we thought.

Get TMZ Breaking News alerts to your inbox

NBA Star Kevin Durant -- Jay-Z's My New Agent

AppId is over the quota
AppId is over the quota
Kevin Durant to Jay-Z
You're My New Agent
Now Go Make Me Millions
Jay-Z is putting Jerry McGuire to shame -- because his budding sports agency just signed three-time NBA all-star Kevin Durant.

The OKC Thunder superstar just posted an Instagram of he and Jay signing docs that make him Roc Nation Sport's newest client.

Durant is the latest in a growing list of HUGE athletes jumping ship to Jay's new venture ... like NY Yankee Robinson Cano, NASCAR superstar Dale Earnhardt Jr., and NY Jet Geno Smith

Durant is Jigga's first NBA star.

FYI -- Durant is currently in the middle of a massive 5-year, $89 million contract with the Thunder. His move to Roc Nation has more to do with landing big money deals off the court.

Get TMZ Breaking News alerts to your inbox