Bob Dylan (born Robert Allen Zimmerman on May 24, 1941) is an American singer-songwriter, musician, painter, poet and latter-day disc jockey who has been a major influence on popular music for five decades. Dylan's early lyrics incorporated political, social and philosophical, as well as literary, influences. The Pulitzer Prize jury in 2008 awarded him a special citation for what they called his profound impact on popular music and American culture, "marked by lyrical compositions of extraordinary poetic power." He has also been awarded two honorary degrees, the first from Princeton in 1970 and the second from St. Andrews in 2004.