Updated: June 5, 2019 at 6:13 AM

Pete Wentz turns 40: A look back (20 images)

American bassist Pete Wentz, of the band Fall Out Boy, turns 40 on June 5, 2019. Here's a look back at his career in music through the years.

Pete Wentz arrives for the MTV Video Music Awards in Las Vegas on September 9, 2007. Fall Out Boy won Best Group. File Photo by Jim Ruymen/UPI

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Wentz performs in concert with Fall Out Boy in Miami Beach, Fla. on October 31, 2007. File Photo by Michael Bush/UPI

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Musicians Wentz (L) and then girlfriend Ashlee Simpson attend the premiere of "Cloverfield" in Los Angeles on January 16, 2008. File Photo by Jim Ruymen/UPI

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Simpson (L) and Wentz attend the Clive Davis pre-Grammy party in Beverly Hills, Calif., on February 9, 2008. That same year the couple would be engaged and Simpson would give birth to their son Bronx. File Photo by Jim Ruymen/UPI

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