Avril Lavigne Gets Engaged to Mod Sun in Paris: ‘The Day We Met I Knew You Were the One’

Avril Lavigne and Mod Sun began dating while collaborating on her breakup album, Love Sux

He was a boy, she was a girl — and they’re going to get married!

Avril Lavigne got engaged to fellow pop-punk rocker Mod Sun on March 27 in Paris, the couple announced on Instagram Thursday.

“It was the most perfect, romantic proposal I could ever ask for. We were in Paris on a boat in the Seine River. We had a violin player, champagne and roses. It felt like time stood still, and it was just the two of us in the moment,” Lavigne, 37, tells PEOPLE exclusively of the proposal.

Mod, 35, popped the question with a custom-designed, heart-shaped ring set in a royal setting with little hearts from XIV Karats from Beverly Hills.

Mod Sun & Avril Lavigne. MARC MOITESSIER

“It has the words ‘Hi Icon’ engraved in it, which were the first words he ever said to me. And it has Mod + Avril on the inside,” Lavigne says. “He knew from the very beginning I wanted a heart shaped diamond because on the day we met, we had matching heart shaped paved rings on. We’ve worn them every day since, so its only fitting to have a heart-shaped engagement ring. I love it so much.”