London, Jan 11 (Agencies): Actress Jessica Simpson proved her generousity by leaving USD 300 extra on top of a restaurant bill in New York recently.

Singer-cum-actress left an extra 60 per cent on a USD 500 restaurant bill after dining with her mother, assistant and two other friends at Italian restaurant Lavo.

Simpson also left a positive message to her waitress, telling her, "You were amazing and make this world a better place, Love Jess."

Simpson, 30, had told her waitress she'd had a hard day at work and ordered Macallan 18-year-old single-malt Scotch whisky, which she drank with ice and paired with an unusual dish of fried Oreo cookies as well as a veal parmigiano.