Susan Sarandon has become a grandmother.

The 'Tammy' actress' daughter Eva Amurri Martino has welcomed a baby girl, named Marlowe Mae, into the world with her husband Kyle Martino, 33.

A representative for the couple told PEOPLE: ''They are thrilled and enjoying the new addition to the family.''

The tiny tot was born on Saturday (09.08.14), weighing a healthy 6 lbs 11 oz and the proud new parents are smitten with their new bundle of joy.

Kyle wrote on Twitter today (11.08.14): ''Can't believe I'm a dad!!! @4EvaMartino and I are over the moon in love with our little girl Marlowe. #Love (sic).''

The couple, who got married in 2011, announced on Twitter in March that they were expecting a baby girl.

Meanwhile, Susan, 67, was hoping her granddaughter would call her 'Honey' rather than grandma but she is now worried the little one will mistake the moniker for ''Horny.''

She said previously: ''I'm going to be a grandma in August for the first time. My grandma name is Honey so my daughter got me a necklace saying 'Honey', and someone asked me today if it says 'Horny'.

''I hope my granddaughter doesn't call me 'Horny.' ''