This is a genderless singer in a shiny costume, with green hair dyed on his head, green eyeshadow painted, and a black microphone next to they. It looks like a singer playing punk and heavy metal music. Character images are different on different platforms.
🧑🎤 means that singers, entertainers, stars, music creators or band members, because they are very brightly dressed and exaggerated. Related emojis:
🎵🎸👨🎤👩🎤.