Paul Teutul Sr.

He enlisted as a member of the United States Merchant Marine during the Vietnam War.

He began building bikes that quickly made their way to magazine covers, and center stage at every major motorcycle event.

OCC landed on the hit reality show American Chopper.

Teutul's regular arguments with his son Paul Jr. became a routine occurrence during episodes of American Chopper.

These vocal disagreements eventually led to Paul Jr. being fired in September 2008.

Teutul (sitting) with Brazilian president Luiz Inácio Lula da Silva (second from right) and First Lady Marisa Letícia in front of the Palácio da Alvorada in Brasília, Brazil.