The 40-year-old daughter of the late rock legend Elvis Presley, Lisa Marie is very happy to be expecting a child with husband Michael Lockwood. Lisa Marie already has two teenage children -- Riley, 18, and 15-year-old Benjamin -- from her previous marriage to Danny Keogh but this is her first with Lockwood. Presley's representative has confirmed she is pregnant, telling, "The couple are incredibly overjoyed." Presley wed Lockwood in 2006 after her three previous marriages all ended in divorce. The singer split from Keogh in 1988; she went on to marry singer Michael Jackson in 1994 then breaking up with him 21 months later, and actor Nicolas Cage, who filed for divorce three months after they married in 2002.