The legendary singer popped up on the Apple TV+ dystopian series after his music was featured in its season 3 premiere.Key PointsEntertainment Weekly has exclusive photos from Peter Gabriel’s cameo on Thursday’s episode of the dystopian drama Silo.The music legend plays himself, a person curious about the Silo underground project, and performs “Here Comes the Flood.”Gabriel’s “Come Talk to Me” was featured in the closing credits of the season 3 …