His philanthropic activities include collaborations with Invisible Children, Inc.
In July 2010, Wentz, with singer Bebe Rexha, guitarist Nate Patterson, and drummer Spencer Peterson, formed the ska/electropop band Black Cards.
Originally, the band had planned to release a full-length LP in the summer of 2011.
Andy Hurley agreed to drum part-time, but only joined the band full-time later.
In 2002, Arma Angelus, the band in which Wentz was the vocalist, played its last show.
The two seconds you're not with that dude he's made 30 decisions that are going to affect our band for the rest of the year." In April 2007, Pete came out with his own signature Squier Precision Bass.
It has a black body with a red shell pickguard and special graphics that include Wentz's own red bat/heart design on the body, plus a black bat/diamond fingerboard inlay at the 12th fret.
Wentz wrote the lyrics to the lead single, "Sugar, We're Goin Down" with his dad in Chicago; the song peaked at #8 on the Billboard Hot 100 and spent months in the top 50 of the Hot 100, marking five weeks in the top 10 and fourteen weeks in the top 20.
The band's major label debut album has since been certified double platinum by the RIAA as well as "Sugar, We're Goin Down." In 2007, Fall Out Boy's fourth album, Infinity on High was released to major success, debuting at #1 on the Billboard 200 with 260,000 sales, spurred by the #2 charting lead single, "This Ain't a Scene, It's an Arms Race".
Wentz then contacted producer Sam Hollander (Gym Class Heroes, Cobra Starship, Hey Monday) and discussed the idea with him to mash up ska, dance and reggae with 80s British rock and pop to create a new experimental sound.