Her Greek streak

MARY J Blige traveled from Italy to Greece to hang with her “Power” castmate 50 Cent. Fiddy was partying at SantAnna club in Mykonos at a bash by Dream Hospitality’s George Karavias and Barry Mullineaux. Blige, who was vacationing on a boat in Capri, decided to go and meet him. A source tells us she was telling people she came to “join my boss,” referring to his role on the Starz series. “50 Cent wasn’t scheduled to perform, but he wound up grabbing the mike from DJ Shortkutz and gave an impromptu performance,” said an attendee. “They were both dancing and having a good time.” We hear that while the club shuts at midnight, it stayed open till 2 a.m.