“The Velvet Underground’s” frontman Lou Reed has died.

According to a report from Rolling Stone, died this morning of unknown causes.

The website TMZ says Reed received a liver transplant in may, and was hospitalized due to complications in June.  It is unknown if his death is related to the transplant.

Reed’s band, “The Velvet Underground,” rocked in the 60’s and 70’s with songs such as “Heroin,” “Sweet Jane,” “Walk on the Wild Side” and many more.  They are considered by many to be one of the most influential punk bands in history.

Reed was 71-years-old.