Chai + Psi + delta 9 (39-sigma-nu) Pi 3 {nu sigma kappa percent divide times epsilon delta 83}

The meaning is complex, but the themes are clear:

Chai + Psi + Delta9

Tea, Psychic powers, and the Delta-quadrant / Deep Space Nine: Obvious Star Trek (Voyager/DS9) reference.

(39 sigma nu) Pi 3

Miku (Japanese: "3" "9") is a new singer with Sigma tendencies and released a pie 3 years ago

nu sigma kappa percent divide times epsilon delta 83

This new japanese sigma character uses their money ("cent") to polarize ("divide") the press ("times") by using Delta flight 83 (Paris <-> Atlanta)

Putting it together

Miku Hatsune released a pie 3 years ago, which was critically acclaimed and condemned after they were caught watching Star Trek on a Delta airlines flight to Paris from Atlanta.