Now That I've Found You by Kristina Forest

Following in the footsteps of her überfamous grandma, eighteen-year-old Evie Jones is poised to be Hollywood’s next big star. That is until a close friend’s betrayal leads to her being blacklisted . . .

Fortunately, Evie knows just the thing to save her floundering career: a public appearance with America’s most beloved actress―her grandma Gigi, aka the Evelyn Conaway. The only problem? Gigi is a recluse who’s been out of the limelight for almost twenty years. Days before Evie plans to present her grandma with an honorary award in front of Hollywood’s elite, Gigi does the unthinkable: she disappears.