100 year old Dorothy Custer of Twin Falls is heading back to California to visit Jay Leno again.  Custer, who first appeared on the Jay Leno Show about a year ago, says she has been invited back to be on the show on Valentine’s Day, February 14th.  Her first appearance with her playing the harmonica for Jay and his legion of viewers, became an internet sensation after a video of her playing the harmonica was first posted on the website of KTVB Television in Boise.  That video has been viewed over 800,000 times, making her one of the most popular Idahoans on the internet today.  The producers of the Jay Leno Show are flying Dorothy and her kids to California for her appearance on Tuesday.