Now Playing: North Korea issues threat amid summit jitters

Now Playing: Trump cancels North Korea summit

Now Playing: Sting and Shaggy rock out Central Park with the hit song 'Roxanne'

Now Playing: Sting and Shaggy rock out to 'Boombastic' live Central Park

Now Playing: Sting and Shaggy perform 'Just One Lifetime' live in Central Park

Now Playing: Sting and Shaggy perform 'Englishman in New York'

Now Playing: Sting and Shaggy rock out to 'Dreaming in the USA' live on 'GMA'

Now Playing: Donald Glover and Alden Ehrenreich dish on 'Solo: A Star Wars Story'

Now Playing: How to score bargains on hidden treasures at flea markets

Now Playing: Will Smith teases 1st new music in 13 years

Now Playing: Sting and Shaggy give a special live performance of 'Angel' on 'GMA'

Now Playing: Catching up with Sting and Shaggy on 'GMA'

Now Playing: Sting and Shaggy perform 'Gotta Get Back My Baby' on 'GMA'

Now Playing: Tips on how to stay safe on the roads this Memorial Day weekend

Now Playing: Rose McGowan responds to Harvey Weinstein turning himself in

Now Playing: Explosion injures 15 at Toronto restaurant

Now Playing: Contractors help woman discovery mystery illness

Now Playing: Best and worst times to hit the road this weekend

Now Playing: NBA player speaks about stun-gun arrest

Now Playing: Millions take to the skies for Memorial Day weekend