When he takes the floor Thursday night to face the Boston Celtics, Houston Rockets All-Star James Harden plans to don a special message across his sneakers for the first time this season.

With hand-painted artwork from sneaker customizer Salvador Amezcua, better known as Kickstradomis, Harden's signature Adidas kicks will feature bold "FREE MEEK" lettering down the upper of both shoes, in support of jailed rapper Meek Mill.

After a repeat probation violation, the Philadelphia native and longtime musician is facing two to four years of prison time at a nearby Chester, Pennsylvania, facility.

As Meek Mill's music has become a staple during pregame layup lines at NBA arenas across the league, he and Harden have forged a friendship. Harden has had him perform at past birthday parties, and the two also took part in a charity basketball game earlier this summer.