Lisa Marie Presley's Twin Girls Named Finley & Harper
10/13/2008 AT 06:15 PM EDT
The couple's first children together were born Oct. 7 via C-section and weighed 5 lbs., 15 oz. and 5 lbs., 2 oz. The names were confirmed to PEOPLE by Presley's rep.
Presley, 40, also has daughter Riley, 19, a model, and Benjamin, 15, with ex-husband Danny Keough.