Lisa Marie Presley, the 24-year-old daughter of the late rock 'n' roll king, gave birth Wednesday to her second child — a son who weighed in at 7 pounds, 8 ounces, spokesman Paul Bloch said Friday.

The boy was born at an undisclosed Florida hospital, and Presley's husband, Danny Keough, a 27-year-old musician, was present.

"The baby was delivered naturally and in complete silence in a calm and supportive environment" under guidelines set out by the Church of Scientology's founder, L. Ron Hubbard, in his book "Dianetics," Bloch said.

The child's name hasn't been revealed.

"Both mother and baby are doing great and are in excellent health," he said. Actress Priscilla Beaulieu Presley was thrilled with the arrival of her second grandchild, he said.

The couple's first child, Danielle, was born 3½ years ago. The couple has homes in Florida and California.

— News Service Reports