Bobby Brown recalls out-of-control spending as teen millionaire, paying a stranger $50K on the spot for their car

Bobby Brown in 1986 (Photo: Todd Kaplan via A+E)
Bobby Brown, in 1986, flexed in more ways than one as a hot, young, teen millionaire. In an exclusive clip from A&E’s Biography: Bobby Brown, the singer talks about spending $1 million in a day just because he could. He'd stop strangers on the street to buy their cars and once bought a store because he didn't like the shopkeeper. (Photo: Todd Kaplan via A&E)

Bobby Brown once spent $1 million in a day as a rising young star — just because he could.

In A&E's Biography: Bobby Brown, which premieres Monday, the singer details the windfall of cash he received after parting ways with New Edition and hitting big with his Don't Be Cruel solo album, featuring hits "My Prerogative" and "Every Little Step." Growing up with little, he was suddenly flush at 18 — and spent frivolously.

"Money was ginormous," Brown says in a clip shared exclusively with Yahoo Entertainment. "I was bringing in so much money at such a young age. My dad didn't have to work anymore. My mom didn't have to work anymore."

But beyond providing for loved ones, Brown — who became a millionaire at 18 — was just wildly throwing money around.

"I'd be driving down the street on the tour bus, see somebody in a car and like the car, pull the car over and buy the car," he recalled of his late '80s debauchery.

He would drive his new ride throughout whatever city he was in that day — and then "just leave the car" at his hotel or at the airport.

LOS ANGELES - APRIL 11:   Singer Bobby Brown attends the Third Annual Soul Train Music Awards Rehearsals on April 11, 1989 at Shrine Auditorium in Los Angeles, California. (Photo by Ron Galella, Ltd./Ron Galella Collection via Getty Images)
Bobby Brown arriving for the Soul Train Music Awards rehearsals at the Shrine Auditorium in Los Angeles in 1989. (Photo: Ron Galella, Ltd./Ron Galella Collection via Getty Images)

"Pay [over $50,000] for a car and just leave it," he said, adding, "Wish I had those cars now."

AJ Alexander, Brown's former bodyguard, told a story about being at a mall with the singer, who observed a Black woman going into a glass figurine shop and the shopkeeper treating her poorly.

"Bob ended up buying the store and giving it to the lady," Alexander said in the doc. "He went back the next day and told the guy he was fired. 'Yo, you fired. You work for her now.'"

American R&B singer Bobby Brown holding a copy of his album 'Don't Be Cruel', at the HMV shop, circa 1988. (Photo by Dave Hogan/Hulton Archive/Getty Images)
After Brown left New Edition and went solo, he got rich. "Don't Be Cruel," which came out in 1988, was No. 1 on the charts. (Photo: Dave Hogan/Hulton Archive/Getty Images)

Brown said growing up in the Orchard Park Projects in Boston's Roxbury neighborhood, he "never thought in my life I'd be able to not only make millions of dollars, but to spend a million dollars in one day." So that became a goal.

"I was like: What? I'm gonna do it,'" he recalled. "And I spent a million dollars in one day."

R&B singer Bobby Brown poses for a portrait session holding an October 1986 issue of Right On Magazine in Los Angeles, California. (Photo by Michael Ochs Archives/Getty Images)
Bobby Brown loved stardom — and had fun with the money that rolled in after he went solo. (Photo: Michael Ochs Archives/Getty Images)

What did he buy that time? Three watches, a car and a house.

"And, uh, I wish I didn't," the now-53-year-old added, as he went on to have financial problems, which amplified after his divorce from Whitney Houston, but he's since straightened out.

Biography: Bobby Brown — which is chock-full of candid remembrances on topics including leaving New Edition, meeting Houston, legal problems and his sexcapades — is a two-night event, kicking off Monday at 8 p.m. ET/PT on A&E with part two the next day at the same time. His new series, Bobby Brown: Every Little Step, premieres Tuesday at 10 p.m. — all will air Tuesdays at 9 p.m. starting June 7.