Robert Neal Cassady McDowell is selfish and spoiled pop star. He is the son of two members of Cloud 9 (a British military superhero team turn into hippies). As such, he has super powers. However due to his biorhythm cycle, these powers only work sometimes. In order for him to do anything heroic, he has to be forced by Peter St. John (a former member of Cloud 9).
His main powers are super strength, flight and invulnerability. He also has limited telepathy and fire manipulation, but he lacks the discipline to use these two. As mentioned before, his powers sometime works, but sometimes not.
My sources were Wikipedia and Comicvine.