It’s the tiniest plot twist.

Avril Lavigne made her last public appearance in April, months before shocking fans with the revelation that she had secretly welcomed a baby girl with a mystery man.

“Our Mini F—ing Princess has arrived 🎀👑🍼🩷,” Lavigne announced on Instagram on Friday, sharing various photos of her newborn daughter.

Lavigne was last photographed in April while leaving the Chateau Marmont in Los Angeles after spending time with friends.

The “Sk8er Boi” singer wore an oversized black hoodie dress by Vetements featuring white spray-paint detailing on the front.

She completed the look with black tights, knee-high leather boots and a black handbag with a silver chain handle.

It was the last time the singer was seen in public before the birth of her baby, though Page Six previously reported she was a surprise performer at an after-party for Taylor Swift and Travis Kelce’s New York City nuptials in July.

For the past year, Lavigne has also been silent on Instagram. Before her reveal on Friday, her last post was shared on Oct. 23, 2025.

The post featured fun photos of her performing at the When We Were Young festival in Las Vegas, as she rocked out with a glittering green electric guitar.

On Friday, the “Complicated” singer shared her sweet announcement, along with photos of her and a mystery man holding the fingers of their newborn.

Another snap showed Lavigne holding her baby girl, who was clad in a leopard-print onesie, close to her chest.

The final picture that Lavigne included in her carousel showed three pairs of Vans sneakers perched atop a skateboard, including a tiny pair for the baby.

It is unclear exactly who the baby’s father is. Her last publicly known partner was rapper Tyga, whom she began dating in 2023.

Though, a source told People in March 2023 that the two “were not exclusive” and “taking things very slowly to be on the safe side.”

By October 2023, their on-again, off-again relationship was “totally done,” People confirmed.

Before Tyga, Lavigne was engaged to singer Mod Sun.

The two dated for around two years, but called it quits in February 2023.

She was previously married to Sum 41 singer Deryck Whibley from 2006 to 2010, and to Nickelback singer Chad Kroeger from 2013 to 2015.