"I definitely feel like I'm sitting in the chair I'm supposed to be sitting in right now," Levine said. "It all feels very natural."
Surprisingly, the reigning "Sexiest Man Alive" told People he recently had a "cool and mellow" bachelor party.
"I think I've probably had enough bachelor parties for all of the bachelors in Southern California," the singer added. "In my lifetime I've done it right."
An insider told OK! Weekly in its July 7 issue Levine and Prinsloo hope to start a family immediately and will begin trying on their honeymoon.
"Adam and Behati want to have a baby right away, and can't wait to start trying," the insider said. "Adam is thrilled about [it]! And Behati is dying to be a mom!"
Besides all the wedding plans, Levine has made his acting debut in Begin Again, a movie in which he plays a singer and songwriter new to fame.
"I had a lot to prove, so I had to pretend like I knew what I was doing," Levine said of his first acting gig. "I was also really busy, so I didn't have time to stew in my own insecurities."
Levine and Prinsloo met in May 2012 and reunited after a brief split in early 2013. They got engaged in July of that year.
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