Now Playing: Rihanna calls out Snapchat for controversial game: 'You let us down!'

Now Playing: Ricky Gervais talks offensive comedy, new special 'Humanity'

Now Playing: What to know about March Madness

Now Playing: Constance Wu dishes on 'Crazy Rich Asians'

Now Playing: Drake breaks viewing record for Twitch videogame streaming

Now Playing: Miley Cyrus sued for allegedly stealing 'We Can't Stop' lyrics

Now Playing: Darren Criss sings 'Brotherhood of Man'

Now Playing: 'American Crime Story' star on his role as serial killer Andrew Cunanan

Now Playing: Lena Waithe talks LGBT representation in Hollywood, 'Ready Player One' and 'The Chi'

Now Playing: 'American Idol' heartthrob Trevor Holmes and his girlfriend speak out

Now Playing: Alicia Vikander opens up about 'Tomb Raider'

Now Playing: Prince William thinks Prince George may be a future police officer

Now Playing: Inside Meghan Markle's transition to royalty

Now Playing: Richard Simmons ordered to pay tabloids $130K

Now Playing: 'The Crown' actor was paid more than female star

Now Playing: Bernadette Peters and Victor Garber on 'Hello, Dolly!' Broadway revival

Now Playing: Mindy Kaling talks new projects, family and more

Now Playing: Meghan Markle and Queen Elizabeth make first public appearance together

Now Playing: Do you remember these iconic 'American Idol' stars?

Now Playing: Michael W. Smith gives a special live performance of 'A Million Lights'