The Truth about Ruby Valentine by Alison Bond

In rural England, Kelly Coltrane's world is a million miles from the one she reads about in her Hollywood magazines. But when screen legend Ruby Valentine shocks the world with her mysterious suicide, Kelly's father reveals something even more shocking-Kelly is Ruby Valentine's daughter.
Kelly sets off for Tinseltown to find some answers, diving head first into Hollywood society with her new family of jet-setters and fashionistas-and attracting the attention of a heartbreakingly handsome hunk.
But the more Kelly digs into Ruby's real life, the closer she gets to uncovering the most unbelievable truth of all...