The co-head of CAA’s London office, which he established with Emma Banks in 2006, Greek oversees a roster that includes Harry Styles, Niall Horan, HAIM, One Republic, Sam Smith, Tate McRae, the Script, Thirty Seconds to Mars, Sigur Ros, Westlife, Zara Larsson and Paloma Faith. Greek began booking and promoting events as a college student at De Montford University, leading to an early-’90s agency job at Wasted Talent. That company was later renamed Helter Skelter, with Greek serving as director.

What’s the best piece of advice you’ve ever received?

“If you don’t buy a ticket, you don’t win the raffle.”