tattoo leather make up courtesy MrPaparazzi

Kat Von D signed copies of her latest book "The Tattoo Chronicles" at Waterstone's Piccadilly in London, and it looks like the inked up Jesse James enthusiast wasn't 100% into it. After losing her home and her cat (poor thing!) last week, we can't imagine how bummed the reality star must be!

But it looks like she's doing her best to smile, as she tweeted the other day, "Btw. I am so looking forward to meeting all your smiling faces at these book signings! Remember, POSITIVE ENERGY FEEDS POSITIVE ENERGY." Good for her!