Andie MacDowell reveals in PEOPLE's World's Most Beautiful issue the sweet name that her grandchildren "adamantly" call her — and the moniker she refuses to use.

Mary Minahan said she's had clients who got tattoos of their partner's name return a few weeks later to have them covered up after a breakup. So now she won't do them anymore.

"As long as they don't call me granny," MacDowell tells PEOPLE of her grandchildren’s name for her Andie MacDowell had one requirement when it came to the name her grandchildren call her.