noun
rock star
Refers to a famous rock musician, often with connotations of glamour, excess, or larger-than-life persona. Used both literally and figuratively.
彼は若い頃、ロックスターに憧れていた。
When he was young, he admired rock stars.
あのIT起業家は、まるでロックスターのような生活
That IT entrepreneur lives a life just like a rock star.