Recap: 'Tiësto's In The Booth' Season 4, Episode 9

Rising star Mike Williams was front and center on this week's episode of Tiësto's In The Booth, joining forces with his mentor in the capital of Bulgaria.

The Dutch producer, who first met Tiësto in Amsterdam, was more than ready show off his skills. "Bulgaria's not a DJ country, so when there's a DJ in town, people go crazy. There's a lot of excitement," says Williams.

Check out more Tiësto's In The Booth recaps right here!