Walking On Sunshine — Jennifer Stevenson

A rock starlet whose biological clock is ticking... An ancient demon under orders to make a goddess out of the starlet... A precocious Parisian teen with a bottomless bank account and a stalker obsession for the starlet...
And a son of vodou whose life tangles with the others as time runs out for him to claim his rightful title in France...
Four lovers. Ancient power. Modern passion. Is love enough to protect their sanity from immortality?