The 25-year-old pop star appears on Tuesday's The Ellen DeGeneres Show where he is very open about his whirlwind proposal to Hailey and his decision to commit to her after a series of failed relationships.
"I'm glad it worked out because she is an amazing, amazing, amazing person," Justin says of his marriage to Hailey. "She really is. She's super precious. I enjoy spending my life with her."
As for his seemingly spontaneous 2018 proposal, the "Yummy" singer notes that he put a lot of thought into the decision to pop the question to the 23-year-old model.
"I was extremely nervous," he admits. "In the past we talked about me asking the question and I felt like she would say yes, so I wasn't really nervous about the saying yes. But I think I was more nervous about, am I going to make this commitment? Am I able to make this commitment as a man and be able to honor, you know, what I say? Because, you know, that's a serious commitment when you say you're going to love someone for better, for worse and be faithful, that's huge. Am I able to do that?"
Noting that he was "battling" with the decision, Justin ultimately chose Hailey as his one and only.
"I finally was like, 'You know what, I'm going to make the decision and follow through with it. Be a husband,'" he says. "This is what I've always wanted. I'm going to just choose this woman and just do it."
Justin isn't afraid to be blunt when DeGeneres asks him about the meaning behind his new single, "Yummy."
"[It's about] my sex life," he simply replies before taking a big gulp of water and laughing.
The pop star also drops the album release date for his fifth studio album, Changes, revealing it will be out on Valentine's Day. His new Changes Tour will kick off in North America on May 14. This is Justin's first tour since his Purpose Tour, which he abruptly ended in 2017 with several dates remaining. The details of that decision are explained in Justin's new YouTube docuseries, Justin Bieber: Seasons.