50 Cent continued to troll Madonna on Instagram, Saturday night. 50 Cent trolled Madonna on Instagram, Saturday night, after the legendary singer refused to accept 50’s apology for previously teasing her. “Well what a positive influence you are. LOL #likeavirgin63 challenge. I’m sorry, SORRY DIDN’T WORK!” 50 wrote in the new post. The beef between Madonna and 50 started when the rapper trolled her for posting …