Billy Joel, Arfa's top client since 1976, performed nine sold-out stadium shows in 2016 in addition to his record-breaking monthly residency at New York's Madison Square Garden, which is entering its fourth year. He grossed $22.6 million for 11 shows he played there in 2016. "It's not something he could've done, necessarily, 10 or 15 years ago," says Arfa, a Queens native who also represents Rod Stewart, Metallica and Linkin Park. "If we were going to do it [then], he needed Elton John -- or Elton John needed us. The fact that he's doing it alone is crazy."