He was a pioneer in the rock and roll industry. The frontman for the legendary band "Velvet Underground."<br/> <br />Rolling Stone is reporting singer-songwriter Lou Reed died on Sunday.<br/> <br />The cause of death is unknown, but the 71-year-old underwent a liver transplant earlier this year.<br/> <br />The influential rock pioneer began his career with the "Velvet Underground" in the 1960s.<br/> <br />The band was known for its collaborative work with artist Andy Warhol.<br/> <br />Reed went on to have a successful solo career, never giving up his love for the guitar.<br/> <br />His continued to write songs and perform on stage up to his death.
