"The Voice" judge, who shares 13-year-old Kingston, 11-year-old Zuma and five-year-old Apollo with ex husband Gavin Rossdale, revealed she often leans on the country star for support when it comes to parenting.
"He is a good dad, actually," Stefani told U.S. show "Today" host Hoda Kotb and guest host Andy Cohen on Monday, September 23. "He's been helping me out a lot, so I literally get to the point where I'm like, 'You gotta get home, I need help.' It's hard. I got three boys."
And when Cohen joked about Kotb's crush on Shelton, the former No Doubt frontwoman wasn't at all surprised.
"It's OK, because I relate," Stefani shared. "He's a magical person. ... I actually am so obsessed with Blake Shelton that I went back and I watched old interviews between you guys because I'm so fascinated that he was alive back then; I didn't know him."
Stefani admitted she is still shocked she connected with her man, who also serves as a judge on the reality competition show, because they are so unlike.
"Life is full of surprises," she marvels. "I just never thought in my wildest dreams, on paper, a cowboy and a ska-like girl from Anaheim would be hanging out, but it works perfect and we're just having so much fun and we just feel so blessed to be at this point in our lives."