Now Playing: Dozer the dog warms the heart of 12 million people
Now Playing: Determined dog tries to catch drone
Now Playing: Doggie, you can drive my car
Now Playing: Update on Demi Lovato’s road to recovery
Now Playing: Actor Ving Rhames says police pulled guns on him at his front door
Now Playing: CBS CEO denies sexual misconduct claims in New Yorker article
Now Playing: Star Wars cast to include a posthumous performance by Carrie Fisher
Now Playing: Nick Jonas and Priyanka Chopra engaged?
Now Playing: CBS chief Leslie Moonves accused of sexual misconduct in upcoming article: Report
Now Playing: What Would You Do: Athletic woman harassed for being “too fit”
Now Playing: Alan Alda discusses how to be a better communicator
Now Playing: Rabbi Shmuley Boteach, friend of Roseanne Barr, discusses fallout from her tweet
Now Playing: Robin Roberts to lead series of inspiring documentaries and movies
Now Playing: Fall Out Boy gives a special live performance of ‘Centuries’
Now Playing: Fall Out Boy performs their fan-favorite hit ‘Champion’
Now Playing: Fall Out Boy rocks out to ‘Uma Thurman’ live on ‘GMA’
Now Playing: Fall Out Boy rocks out to ‘My Songs Know What You Did in the Dark (Light Em Up)’
Now Playing: Catching up with Fall Out Boy live on ‘GMA’
Now Playing: Fall Out Boy performs ‘The Last of the Real Ones’ on ‘GMA’
Now Playing: Michelle Williams of Destiny’s Child ‘better’ after seeking help for depression
