Get excited for him to rhyme "fans" with "Hugh Jack-man."
You should have clicked the play button immediately, but in case you need more convincing: it's Hugh Jackman singing about being Wolverine to the tune of "Who Am I?" from Les Mis. Yup. The best part isn't even the cheeseball lyrics about his diet and exercise routine, it's watching Jackman try to get through them without breaking character.