Lindsay Lohan has laughed off her party girl persona, insisting she works "harder than most of my friends' parents". The 19-year-old singer/actress is a regular guest at New York, Los Angeles and Las Vegas nightspots, but insists she works just as hard as she parties. Speaking on US TV show TODAY, Lohan says, "I work harder than most of my friends' parents, I think. I'm the hardest working person I know. "I don't really know what to do when I'm not working. I'm a workaholic - I get very creatively frustrated. "Hopefully people will know me for my work - not my car accidents."