The babies are expected in the autumn.

Presley, daughter of Elvis Presley and actress Priscilla Presley, announced her pregnancy on her MySpace page in March, saying she was forced to go public with the news after photos of her looking heavier were ridiculed in the media.

The 40-year-old singer has two children from her marriage to musician Danny Keough, which ended in 1994. She was briefly married to Michael Jackson and Nicolas Cage.

Presley married music producer Michael Lockwood in January 2006.

"It's her time to celebrate with her husband," Priscilla Presley said in an interview. "My daughter is a very family girl. She loves children, and I know that she and Michael have been hoping for this for a long time."

She said twins run in the family "on Elvis' side and on my side too. I have twin brothers, and then, of course, Elvis had a twin brother" who died at birth.



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