Tekashi 6ix9ine, 24 ... grooved and rapped along to Tekashi’s fire new single “Gooba.” Tekashi was totally blinged out for the at-home hair appointment, rocking a gigantic diamond necklace ...

After 6ix9ine was released from New York jail last Friday (July 13 ... I feel good. I just got my hair done. I'm still the fastest kid in the world. We got a new piece. Never been done before.

Turns out he was just trying out a new hairstyle for his ever-evolving rap career with the option to go back to how it all started whenever he wanted to. Looks like 6ix9ine is making a return to ...