2AM's Chang Min tweeted about how new gym members have mistaken him for a health trainer. On September 30th, he wrote on his Twitter, "New members keep asking me how much it is for a month ? �They think I'm a health trainer ? I have to work harder!" revealing a humbling experience for the 2AM vocalist. Fans replied, "How can you mistake Chang Min?", "They just wanted to start a conversation", "Where is your gym?? I want to sign up", showing humorous responses to Chang Min's predicament. Photo: newsen