Now Playing: How to make pineapple macaroon cookies

Now Playing: Exclusive: Jennifer Lopez Opens Up About Vegas Show, Raising Her Kids

Now Playing: JLo's surprise Las Vegas performance with the Chainsmokers

Now Playing: Kanye's new album 'Ye' premiers at exclusive listening party

Now Playing: Danny Farquhar throws out first pitch at White Sox game

Now Playing: NBA team takes break from Finals to visit Boys & Girls club

Now Playing: 'Queer Eye's' Fab Five surprises LGBTQ students and allies from GSA clubs in NYC

Now Playing: Trump calls for Samantha Bee's firing after remark about Ivanka Trump

Now Playing: Late-night comic apologizes for Ivanka Trump attack

Now Playing: Catching up with Halsey on 'GMA'

Now Playing: Halsey and Lauren Jauregui perform 'Strangers' live on 'GMA'

Now Playing: Halsey rocks out to 'Bad at Love' live on 'GMA'

Now Playing: Cavs superfans surprised with NBA finals tickets on 'GMA'

Now Playing: James Marsden on why being an actor is a lot like being a host in 'Westworld'

Now Playing: Queen Elizabeth has a never-before-seen pic of Prince Harry and Meghan Markle

Now Playing: Warriors win NBA Finals Game 1 in OT

Now Playing: How Cirque du Soleil performers train for extreme stunts

Now Playing: 'The View' gets a special sneak peek of 'Frozen' on Broadway

Now Playing: Trump speaks out on 'Roseanne' as she defends herself on Twitter

Now Playing: Cavaliers, Warriors to face off in first game of the NBA Finals