Elvis Presley's daughter Lisa Marie is convinced she's found her perfect man in boyfriend MICHAEL LOCKWOOD - because the couple never fight.

The three-times-married rocker has been dating her guitarist beau for the past year (04) and insists she's never been happier.

She says, "I am the happiest I've ever been and I'm in the most sane, calm, best relationship that I've ever been in, for sure.

"The most amazing thing is that we've been together for two years and there hasn't been one fight, which is a pretty big deal."