Rick Ross -- Saturday Night Concert Cancelled

Rick Ross will NOT take the stage tonight in North Carolina ... this after his Friday night health scare left him hospitalized twice for seizures.

A rep for the Greensboro Coliseum, where Ross was scheduled to perform, had previously told TMZ they had been contacted by Ross' people and told he would be there.

But when TMZ called the arena again around 6:50 PM ET, the deputy director of the Coliseum said Ross would no longer be performing. He would not elaborate.

Ross also cancelled his show last night in Memphis.