COP30 in Brazil Draws International Celebrities for Environmental and Cultural Events

International celebrities flocked to Brazil for COP30 in 2025, engaging in performances, activism, and cultural exchanges linked to environmental themes.

    Key details

  • • COP30 officially started on November 10, 2025, in Belém, but celebrity events began earlier.
  • • Mariah Carey performed at Amazônia Live but faced fan criticism for not sharing photos.
  • • Prince William attended Earthshot Prize events and shared social media posts from Rio.
  • • Shawn Mendes participated in cultural activities and was linked romantically to Bruna Marquezine.
  • • Luisa Mell staged a bold protest at COP30 focused on meat consumption and the environment.

The COP30 conference, which officially began on November 10, 2025, in Belém, Brazil, attracted a high-profile roster of international celebrities who engaged in various sustainability-focused and cultural activities around the event. Mariah Carey inaugurated the celebrations in mid-September at 'Amazônia Live,' a performance and TV broadcast attended by 300 guests, where she passionately advocated for forest preservation despite fan disappointment over her not sharing photos of the visit.

Prince William arrived earlier in Rio de Janeiro on November 3 for sustainability engagements, including the Earthshot Prize ceremony at the Museum of Tomorrow. During his visit, he explored iconic landmarks such as Christ the Redeemer and shared striking images of his experiences on social media. Shawn Mendes, who performed alongside artists like Anitta and Gilberto Gil at the Earthshot event, also immersed himself in Brazilian culture, spending time in Salvador with Ivete Sangalo and meeting indigenous leader Raoni in Belém. Mendes was additionally spotted with Dua Lipa, igniting rumors of a romantic connection with Brazilian actress Bruna Marquezine.

Other notable acts included Gaby Amarantos, who reportedly sparked dating rumors involving Coldplay's Chris Martin, who was seen at her Belém residence. Activist and animal rights advocate Luisa Mell made headlines by staging a provocative protest at COP30, painting herself as the Earth and lying on a giant plate to highlight the environmental impacts of meat consumption, aiming to provoke public discussion.

Brazil's year of celebrity visits was broader, with figures such as Kim Kardashian visiting Rio for a TV series, Angelina Jolie engaging with indigenous communities, and Lady Gaga attracting large crowds, further cementing Brazil as a focal point for international stars in 2025.

This article was synthesized and translated from native language sources to provide English-speaking readers with local perspectives.