Adam Levine opened up on his anticipation for the day he becomes a daddy.

On Thursday night, the Maroon 5 frontman made an appearance The Tonight Show with Jimmy Fallon where he said he's "excited" to become a father and how it's always been "part of the plan."

Levine's wife, Behati Prinsloo, is expected to give birth to the couple's baby sometime later this year where the singer confirmed they are having a girl.

As for how his wife is doing, Levine said she's eating "a lot of watermelon."

"You know, they get random cravings for stuff and it's just like, so much watermelon!" he said.

See what else Levine had to say in the video below.

The rocker previously dished to Entertainment Tonight on how stoked he is to be a parent since he believes that's what some people are meant to do.

"I'm ready to be a dad," he said. "You're born to be a parent, that's what we're here for, really. All the other s-it is great, but it's not what we're here for."

When asked if he's been receiving any tips from friends or family members, Levine said that he and Prinsloo are working things out in their own way.

"When you are doing this for the first time, everybody loves to tell you what you should be doing," Levine explained. "So we're kind of tuning a lot of it out and we're just going to do it how we do it."

Blake Shelton, who works with Levine on singing competition The Voice, is also excited for his pal to become a parent.

"I'm looking forward to Adam actually having to wake up before noon or one o'clock for the first time in his life, you know, to go change a diaper," Shelton joked. "I think it's going to be good for him. I think the baby is going to do more for Adam than Adam is going to do for the baby, I'll put it to you that way. I'm very happy for him."

Tags: Adam Levine behati prinsloo