There is absolutely no way that image can be duplicated with lighting. NONE! The surface of the object clearly shows it has a different reflectivity than the skin of her ear. The bright spot on the object is from the back or fill lighting on the stage.
I don’t know what it is, but I can guarantee with 100% certainty it is an object and not her Skin or caused from lighting, reflection, refraction.
That’s not an ear bud. That’s her last brain cell trying to commit suicide.