Now Playing: Harvey Weinstein accuser faces her own sexual assault allegations

Now Playing: Ariana Grande shares how she knew Pete Davidson was the one

Now Playing: Estelle discusses upcoming album and new single, ‘Better’

Now Playing: Asia Argento responds to sexual assault allegation

Now Playing: ‘GMA’ Hot List: Drake surprises a young fan battling cancer in the hospital

Now Playing: Women rule at Video Music Awards

Now Playing: MTV’s hit show ‘The Hills’ to return to TV as ‘The Hills: New Beginning’

Now Playing: Jon Stewart guides goats off train tracks

Now Playing: Drake visits young heart transplant patient from Kiki challenge

Now Playing: The best moments from the VMAs

Now Playing: Ashlee Simpson taught Evan Ross to ‘really be yourself’ on their new reality show

Now Playing: Meghan Markle and Prince Harry enjoy a secret getaway with the Clooneys

Now Playing: J.Lo wins big at VMAs while Madonna faces backlash

Now Playing: A pop-art exhibit celebrating 90 years of Mickey Mouse is coming to New York City

Now Playing: Rapper Common’s advice to first-gen students: ‘Struggle creates progress’

Now Playing: Live from the VMA red carpet

Now Playing: Live from the VMA red carpet: Iggy Azalea

Now Playing: Live from the VMA red carpet: Shiggy

Now Playing: Bel Biv DeVoe discusses upcoming tour and hitting the road with Bobby Brown

Now Playing: Sabrina Carpenter performs ‘Almost Love’ live on ‘GMA’