In May 1998, Bonny decided to go to Chicago in search of the blues: "I had to travel there as a pilgrimage." Speaking almost no English, he jammed with Louisiana Red, Buddy Guy, Jimmy Johnson, Kenny Neal, John Primer and Bernard Allison. Short of money, he played in bars and on the streets of Chicago to pay for his return ticket. In 1999, Bonny decided to record the album Cambodia, released in Switzerland in March 2000. In March 2001, he released the album Something's Wrong. In March 2003, he released his second album, If This Is Life, and signed with Universal Music and its sponsor Hohner Harmonica. By October 2004, Bonny B. was performing 120 concerts per year. In the spring of 2005, he released his third album, I Got the Blues, on the Dixiefrog label and Hard Board. In 2005, he released his debut album Something's Wrong in the U.S. and Canada with the Dixiefrog label. In 2006, he decided to open a school in Cambodia for underprivileged children, financed by the sale of his latest album and concert support. On February 28, 2009, on a bet, he became the only harmonica player in the world to play the harmonica for 24 hours nonstop (a Guinness World Record), to raise money for his school in Cambodia. Also in 2009, the first Bonny B. Blues Club opened in Fribourg, where he organised blues concerts with American artists. In March 2010, Bonny B. recorded his eighth album, which was produced in collaboration with Bob Margolin.