Now Playing: LeBron James' Letter Snubs Cleveland

Now Playing: Cavs' Fans Burn LeBron Jerseys

Now Playing: LeBron James: From Ohio to Miami

Now Playing: Kelly Clarkson calls for action in response to school shootings at Billboard Awards

Now Playing: Royal wedding baker puts finishing touches to cake

Now Playing: 'Whitney' documentary claims singer was molested

Now Playing: Two words from Michael Keaton leave college grads cheering

Now Playing: 'The Last Days of Michael Jackson' Airs Thursday Night May 24th at 8p/7c Only on ABC

Now Playing: Thomas Markle admits staging photos with paparazzi

Now Playing: From Diana to Meghan: What it takes to dress a royal

Now Playing: Behind the scenes: Covering the royal wedding

Now Playing: Tom Wolfe on the 'money fever' of the 1980s

Now Playing: Dec. 15, 1989: Margaret Atwood, Tom Wolfe talk about the American novel

Now Playing: 'Deadpool 2' cast assemble their ideal squad at premiere

Now Playing: Ryan Destiny discusses 'Star' character and forthcoming album

Now Playing: Karrueche Tran discusses her new film 'The Honor List' and season 2 of 'Claws'

Now Playing: Georgina Chapman breaks her silence on Harvey Weinstein allegations

Now Playing: Amal Clooney brings Vanderbilt graduates to their feet after speech on 'courage'

Now Playing: Kimmel: North Korea detainees 'in for some shock' with Trump meeting

Now Playing: 'Iron Man' suit worth more than $300K missing