Céline Dion made a rare appearance through a pre-recorded message during the first semi-final of the Eurovision Song Contest, noting the event's return to Switzerland for the first time since her own historic win in 1988. Dion expressed her emotional ties to the country, stating, "Switzerland will forever hold a special place in my heart. It's the country that believed in me." Although fans were hopeful for a live performance, she clarified her absence from the event, saying, "I'd love nothing more than to be with you."

The semi-final showcased 15 acts, with 10 qualifying for the final, including Sweden's KAJ and their song "Bara Bada Bastu," which translates to "let's take a sauna." KAJ has been predicted to have a 40% chance of winning the final, which, if achieved, would mark Sweden's eighth win in Eurovision history, placing them ahead of Ireland, who also holds seven titles.

Other finalists included acts from Norway, Albania, Iceland, and others, but the disqualification of notable entries from Azerbaijan, Belgium, and Slovenia shocked attendees, particularly for Belgium’s Red Sebastian, whose anticipated anthem "Strobe Lights" failed to secure a spot.

Céline Dion's message aired during the voting period, and despite her recent health struggles related to stiff-person syndrome, organizers remain hopeful she may still make an appearance at the grand finale. Reflecting on her own 1988 victory, she said it was "a life-changing moment for me" and expressed gratitude for her supporters in Switzerland.

Meanwhile, the semi-final featured eclectic performances, from Polish star Justyna Steczkowska’s acrobatic display to the high-energy opening act by Iceland’s VÆB. The arena thrummed with excitement as KAJ dominated the crowd with their humorous sauna-themed routine, which has resonated well in the Swedish charts.

As the final approaches, fans await the outcome of the second semi-final and anticipate the thrilling culmination of Eurovision 2025, with KAJ positioned as formidable contenders in a vibrant competition showcasing a range of talents and musical styles.