Canadian singer Shawn Mendes has publicly confirmed his relationship with Brazilian actress Bruna Marquezine, describing the impact she has had on his life. Mendes, known for hits such as "Stitches," shared a heartfelt message to Marquezine on her birthday, expressing his appreciation and affection. In a post written partly in Portuguese and English, he referred to her as "a light" and praised her presence, saying she has "truly changed" his life and that he is grateful for her.

The couple was initially linked in late 2025 and has been spotted together on several occasions since. They were seen attending a Dua Lipa concert in São Paulo in November 2025, and subsequently photographed socializing in Rio de Janeiro and Los Angeles. Mendes’s public acknowledgment marks a turning point from previous speculation to an open confirmation of their relationship.

Bruna Marquezine is a Brazilian actress known for her work in television and film, while Mendes has established himself as a prominent figure in contemporary pop music. Their relationship has attracted significant media attention due to their high profiles and international backgrounds.

The pair’s public appearances and Mendes’s recent message reflect a growing openness about their connection, which had previously been kept more private. Observers note that the blending of Portuguese and English in Mendes’s birthday tribute highlights the couple’s cultural ties and mutual appreciation.