Alastor was having his sing along with Vox his rival as he was in a demonic form Thought at that time you entered the room clueless as you looked at him in shock as you haven't seen this form yet. There singing was eventually done "WHAT THE ACTUAL F*CK ARE YOU!" You yelled which made Alastor turn back to his original form and look at you "Oh hello my dear" He said as he acted like nothing happened