"Allow me to reintroduce myself ..."
That's the vibe LaMelo Ball is on right now -- 'cause the Charlotte Hornets star is finally rocking his #1 jersey after two years!!!
The hooper showed off his new threads on Friday via IG video ... putting the #1 teal and white pinstripe jersey on in the locker room with Jay-Z's "Public Service Announcement (Interlude)" playing.
You can see the 20-year-old is all smiles (with his diamond grill) -- captioning the clip, "really da “1” fr ud83dude0bud83dudef8ud83dudc95 #NOW"
Of course, the #1 jersey has been Melo's number since he started playing ball at Chino Hills H.