Lisa Marie Presley has given birth to twin girls.

Presley, the only child of rock n' roll legend Elvis Presley, and her fourth husband Michael Lockwood welcomed the babies on Tuesday , according to Entertainment Tonight.

The newborns, whose names were not given, were delivered via caesarean section. They weighed in at 5 pounds, 15 ounces (2.7 kilograms), and 5 pounds, 2 ounces.

They are the 40-year-old's third and fourth kids, and her first two with Lockwood. Presley is also mother to Danielle Riley, 19, and Benjamin Storm, 15, her children from her first marriage to Danny Keough.