The Maroon 5 frontman also revealed if Behati Prinsloo is having a boy or a girl.
As Behati Prinsloo gets closer to her due date, it appears the Victoria's Secret model is starting to have some serious pregnancy cravings. Luckily for her, she's got a hunger for something delicious.
Adam Levine sat down with Jimmy Fallon on Thursday's The Tonight Show, where he revealed what sweet treat his wife has been craving: "She's eating a lot of watermelon, a lot of watermelon."
WATCH: John Legend Reveals Chrissy Teigen’s Pregnancy Cravings
"Because, you know, they get random cravings for stuff and it's just like, so much watermelon!" Levine added. As far as cravings go, you can't do much better than watermelon, although he admitted that she also has the occasional craving for ice cream as well.
The Maroon 5 frontman, who confirmed he's "super excited" that the couple is having a baby girl, also told Fallon that he and Prinsloo have wanted children from the start.
"It's always been part of the plan," Levine, 37, explained.
WATCH: Adam Levine and Pregnant Wife Behati Prinsloo Joyfully Go House Hunting
The singer recently shared similar sentiments with ET at The Voice's Karaoke for Charity event last week, where he said, "I'm ready to be a dad. You're born to be a parent, that's what we're here for, really. All the other s*** is great, but it's not what we're here for."
The Voice coach confirmed that he and Prinsloo were expecting their first child earlier this month with an adorable Instagram pic of his beautiful wife showing off her barely-there baby bump in a tiny red bikini.
"My two favorite laker fans," the 37-year-old singer captioned the super sweet snapshot.
WATCH: Behati Prinsloo Stylishly Hides Baby Bump While Shopping With Husband Adam Levine
Days before confirming the news, the cute couple were spotted in Pacific Palisades looking for a new, bigger home for their expanding family.
For more from Levine about his impending fatherhood, check out the video below.