I appreciate that this very pink girlie Kramer guitar would have been marketed to young girls, but I do hope that Jewel herself doesn't play one, as she'd look a bit silly playing a guitar with her own picture on it.
I can't help being reminded of this exchange:
MILHOUSE: I'm Radioactive Man.
LISA: I don't think Radioactive Man would wear a plastic smock with his picture on it.
MILHOUSE: He would if it was Halloween.
(The Simpsons, Tree House Of Horror X: The Collector's Lair)