Adam Levine: Anti-Marriage Before Behati

Never say never! Just ask Adam Levine, who once told Jay Leno he would "never" make it to the altar, but popped the question to Victoria's Secret Angel Behati Prinsloo in July.

Their engagement came as a surprise to many, as the 35-year-old rocker had garnered a reputation for being somewhat of a (how should we put this?) modelizer. Apparently, however, this is one tiger that changed its stripes.

Levine dropped by "The Tonight Show With Jay Leno," on Monday and had to explain his new stance.

"I remember talking to you one time, you telling me you were never going to get married, and now you're engaged," the host pointed out. "Tell me what happened here."

"Famous last words: 'I'll never get married,'" Levine laughed before adding, "You know, I still don't think you have to get married, unless you meet someone that makes you want to marry them. And then you marry them and it's wonderful."

We're guessing he's just speculating on that last part since he and Behati aren't actually married yet (though they did recently have dinner with her parents). They also haven't picked a wedding date.

"We're working on it," he quipped before revealing that their focus right now isn't actually marriage, it's Halloween. "We're gonna do 'Eyes Wide Shut,' the kind of creepy masquerade thing," he explained.

When you find someone willing to dress up like a character from an erotic Kubrick thriller for you, it must be true love -- especially when that someone is a 24-year-old supermodel.