ABBA Composer Benny Andersson Reworks 'Mamma Mia' as Sweden Votes in Tight Election

Piano performance in central Stockholm

Swedish musician and ABBA composer Benny Andersson visited the headquarters of the Social Democratic Party in central Stockholm on Sunday, 13 September 2026. The 79-year-old artist arrived a few hours after polling stations opened across Sweden for the national parliamentary election. Andersson took his place at a piano arranged inside the party headquarters to demonstrate public backing for opposition leader Magdalena Andersson. While the composer and the Social Democratic party leader share a surname, the two are not related. The septuagenarian songwriter entered the room to applause from campaign volunteers and party officials who had gathered early on election day. Supporters of the party packed the central Stockholm venue to witness the performance as voting proceeded across the country.

Andersson spoke to those in attendance about his motivation for appearing at the campaign headquarters on election morning.

“I said to myself, why not come and play for Magdalena?”

Reworking 'Mamma Mia' for the campaign

Andersson played the melody of the popular ABBA track "Mamma Mia" on the piano as supporters applauded. The performance included an altered lyrical refrain adapted for the Social Democratic election campaign. Instead of singing the original words "Mamma Mia" in the chorus, the assembled crowd sang "Mag-da-le-na!" in unison. The crowd clapped in rhythm with the piano chords while chanting the candidate's name across several refrains of the song. Magdalena Andersson, who previously served as Sweden's prime minister, watched the rendition with amusement from the audience alongside party members. The musical appearance took place during the voting hours of an election campaign described in Swedish reports as one of the most competitive in recent national history.

Coalition contest and policy debates

The 2026 parliamentary election presents Swedish voters with a choice between a left-bloc government led by Magdalena Andersson and a continued conservative administration under incumbent Prime Minister Ulf Kristersson. Magdalena Andersson is seeking to return the Social Democrats to power after serving as prime minister prior to Kristersson taking office. A victory for the conservative alliance led by Kristersson could result in far-right ministers entering the national cabinet for the first time in Swedish history. Throughout the campaign, debates between the rival political blocs focused heavily on state policies concerning migration, measures against gang crime, and reforms to the judicial system.

Polling shifts and ballot counting schedule

Opinion surveys for much of the election cycle indicated a consistent lead for Magdalena Andersson and the left-leaning parties. Conservative parties narrowed that gap during the final days leading up to Sunday's vote, leaving both coalitions separated by minimal margins. The tight contest means the eventual governing majority could be determined by a margin of a few thousand votes across competitive electoral districts.

Polling stations throughout Sweden remain open to voters until 20:00 on Sunday evening. Broadcasters and pollsters plan to release initial exit polls and forecasts immediately after voting ends at 20:00. Official preliminary seat projections and vote counts are scheduled to be calculated during the night into Monday morning as election authorities process ballots from across the country.