(CNN) Ed Sheeran deleted his Twitter account this week, but the singer did not provide an explanation to the public about his decision to remove himself from the social media platform. The singer's cameo appearance on "Game of Thrones" on Sunday elicited a mix of criticism and praise on social media, prompting fans to speculate that he deleted his account because of the trolling he received over his performance. "I go on it and there's nothing but people saying mean things," Sheeran said.