Adam Levine's fiancée changed his opinion on marriage.

The Maroon 5 frontman was once staunchly adamant he would never marry but he says meeting model Behati Prinsloo, to whom he got engaged in July, has made him have a change of heart.

In an interview with 'The Tonight Show with Jay Leno', he quipped: ''Famous last words, I'll never get married! ... I still don't necessarily 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.''

The 34-year-old hunk proposed to Behati, 24, in July when they reunited following a brief separation.

It was recently reported the couple are planning not one, but two wedding ceremonies - one in Los Angeles and one in the brunette beauty's native Namibia.

A source said: ''He went back and forth about having the wedding in Behati's native Namibia or in Los Angeles, where they live. Behati's parents would love for the wedding to be in Africa, but they understand that it is a major trek for all of their friends.''