This is an cool article about Kelly giving 2 big $100 tips to hotel Monaco in Seattle and she left her room behind clean instead of a big mess, like rock stars always leave their rooms behind. It's an very positive article

Here is the article:
Kelly Clarkson: One Big Hotel TipperKelly Clarkson was spreading the love at the hip Hotel Monaco in Seattle during a lengthy stay. Restaurant patrons started a low-key frenzy as she hung out at the hotel restaurant Sazerac over successive evenings. But the highlight came when the successful solo artist dropped by on Thanksgiving to take part in the make-your-own Bloody Mary bar. "Before heading out for her own Thanksgiving dinner, she dropped a hundred dollar tip on the bartender. Needless to say it was something to be thankful for," one-star struck patron tells PopEater. But the love didn't stop there.
PopEater reached out to a hotel source who said that Clarkson is still beloved by the hotel staff after she laid out another $100 tip for her room service bill.
And she moved into hotel legendary status after she checked out.
"Rock stars are supposed to leave the place a wreck," says the source. "But Kelly's room was immaculate. It was almost cleaner when she left."
Rock on Kelly Clarkson, rock on.
Source:
http://www.popeater.com/2009/12/03/kelly-clarkson-hotel-tipper/