Los Angeles, California - Singer Shawn Mendes has pulled the curtain back on his new romance with Bruna Marquezine!

The 27-year-old shared a swoon-worthy birthday tribute to the Brazilian actor, who turned 31 on Tuesday.

"You are a light and a mãe in every room you walk into," Shawn gushed in his Instagram post. "Not to be tooooo sappy but you've truly changed my life, and I am so so grateful for you."

He then flexed his knowledge of her native language by adding in Portuguese, "I love you so, so, so much!!!"

Kim Kardashian Kim Kardashian's son Saint makes Instagram debut – but does his mom approve?

The post included videos of Bruna at the Casa Amarela Providencia, a cultural center in Brazil that fosters education and creative expression.

In the clips, Bruna was seen being serenaded by a room full of kids, while one of the children gave Shawn a hug in another adorable moment.

Though the post made the pair Insta-official, their romance hasn't been a total secret. They first sparked dating rumors with an outing in late 2025.

Both stars have had relationships with fellow celebrities in the past.

Shawn was linked to fellow singer Camila Cabello between 2019 and 2021. He then had a rumored fling with Sabrina Carpenter before briefly rekindling things with Camila in 2023, but that reunion only lasted a few months.

Bruna, meanwhile, had a four-year romance with Brazilian soccer star Neymar until 2017.