Pete Wentz was in "depression" after Fall Out Boy break

Fall Out Boy bassist Pete Wentz revealed that he has "battled depression" after his bandmates decided to start an "indefinite break" last year. According to his words, he did not know what to do.

"It was so strange. I became this guy in a plaid shirt and grew a depressed guy beard. I was at rock bottom", said he.

However, it all ended after Pete Wentz decided to form a side project named Black Cards. Last week they have unveiled debut single. Titled Club Called Heaven, it was recorded in collaboration with American hip hop band Chiddy Bang. Remarkably, it features female vocals.

You can listen to the song on the band's official website.

Fall Out Boy members announced that they would take an "indefinite break" from all kinds of band duties. According to their spokesperson, none of the four band's members are going to work on music at that time.

The band was formed in 2001 and reached mainstream success with its third album From Under The Cork Tree in 2003. Fall Out Boy's last to date record Folie A Deux was released in 2008. Greatest hits album Believers Never Die is set to hit the stores on November 30.