United Kingdom, July 9 -- Kevin Jonas lost "almost all" of his fortune when the Jonas Brothers were on hiatus.

The 37-year-old singer - who began his career in 2005 - admitted he has gone through highs and lows with his finances, and things were particularly bad when the Sucker hitmakers were on a break from 2012 to 2019.

Speaking to Lewis Howes on The School of Greatness podcast, he said: "I've seen the beginning of the success to financial success - not knowing what money really was and understanding it - to not having [it], to losing almost all of it."

Kevin attributed the lost of his wealth to a number of "bad business deals" that took place around "nine years ago."

Lewis asked: "You almost lost all your money?"

His guest clarifi...