your girl frida - read about it here.
IHEARTU - read more here.
It's with regret, Mr Warhol... read here.
Shaun Usher started the fascinating blog Letters of Note some months back and it is definitely worth a look if you are drawn to this kind of material. The correspondence covers a broad range of fields. I've chosen 3 from the Art category here - a close inspection of the bottom letter will amuse anyone who has experienced the knock-backs that are part of the artist's vocation. Dont think Andy let this one hold him back too much!