Gwen Stefani had to explain No Doubt to her son: ‘Which one was your boyfriend?’

She left him with little to no doubt.

Gwen Stefani had to explain her band to her youngest son, Apollo, after he questioned her upcoming reunion with No Doubt at Coachella.

“I had to literally lay in bed with Apollo and he’s like, ‘But mom, what is Coachella? Everyone’s saying it. What is this? It sounds like it’s a big deal,’ ” Stefani, 54, recalled to People.

“So we had to watch the ‘Don’t Speak‘ video, and he’s like, ‘But wait, which one was your boyfriend?’ It was so weird and so funny. I literally had to tell him each band member,” the songstress laughed, referring to ex-boyfriend Tony Kanal.

According to the “Hollaback Girl” singer, her son’s budding interest in her musical history made her realize how long it has been since No Doubt had played together.

“That’s how much time’s gone by because he’s going to be 10! It’s just another miracle and a blessing. And it was surreal for me,” Stefani noted. “I feel like we’re in the future and lightning just struck and [No Doubt] is like, ‘Here we are!’ “

Stefani shares Apollo (third from left), 9, with her ex-husband Gavin Rossdale along with Kingston,17, and Zuma,15. Matt Baron/BEI/Shutterstock

According to the “Hollaback Girl” singer, her son Apollo’s budding interest in her musical history made her realize how long it has been since No Doubt had played together.

Stefani shares Apollo, 9, along with sons Kingston,17, and Zuma,15, with her ex-husband Gavin Rossdale.

No Doubt was formed in 1986 by Stefani and her brother Eric, who later left the group in 1995, and John Spence, who died by suicide in 1987.

The group was later joined by Kanal, 53, Adrian Young, 54, and Tom Dumont, 56, prior to their first record in 1992.

No Doubt was formed in 1986 by Stefani and her brother Eric, who later left the group in 1995, and John Spence, who died by suicide in 1987. APAP Photo/Mark J. Terrill, File

In 2012, the band reunited to release their sixth album “Push and Shove” and were last spotted playing together in 2015 before resuming their solo careers. AP Photo/Ron Frehm

No Doubt produced several hits such as “Just a Girl,” “Bathwater,” “Simple Kind of Life” and several others before going on hiatus.

In 2012, the band reunited to release their sixth album, “Push and Shove,” and were last spotted playing in 2015 before resuming their solo careers.

It was announced earlier this month that the band will reunite to headline Coachella in April.

No Doubt produced several hits such as “Just a Girl,” “Bathwater,” “Simple Kind of Life” and several others before going on hiatus. Brian Rasic/Getty Images

According to Stefani, the warm reception fans have given the news has left her “completely overwhelmed.” POP-EYE/ullstein bild via Getty Images

“It just happened so fast, and that’s my favorite kind of thing to happen. We haven’t really figured out the next steps of how we’re going to do this, but we’re just all so excited,” Stefani gushed to People. “And I think really just watching the internet blow up [with] how excited that the fans are? It’s inspiring us.”

“It’s just going to be cool,” continued Stefani. “It’s just going to be: Get up there and do what we always do, which is play our music and try to connect and be so grateful that we got this amazing career that we never expected to have.”

“You’ve got to remember, we were in No Doubt for nine years before ‘Just a Girl’ got on the radio,” she added. “We weren’t doing it to make it. And so now to be here in 2024 and have that excitement of the announcement? It’s beyond.”

According to Stefani, who is now married to Blake Shelton, the warm reception fans have given the news has left her “completely overwhelmed.”

“I definitely have that little thing in your stomach where you’re like, ‘Oh my gosh! What?’ ” the three-time Grammy winner said. “It’s going to be amazing.”