Alyson Hau has dominated the airwaves since joining Metro Radio as a 16 year old.

Since then she's covered the Olympics, the World Expo, world premieres for major films including Transformers and Twilight, and interviewed massive music acts such as Maroon 5, Backstreet Boys and Lady Gaga.

She told us about the good, the bad and the ugly of meeting superstars, and what it takes to nail a great interview.