Despite being from a neighbouring country, the group KAJ (“kye”) came fourth whilst representing this country at the 2025 Eurovision Song Contest with the song “Bara Bada Bastu.” (10[2])The DJ Axwell is part of a group named for this country, who collaborated with The Weeknd on the 2022 hit “Moth to a Flame.” (10[2])A band from this country suggests moving to “Las Vegas or Monaco” because we live “in a rich man’s world.” A group from this country sang about “The history book on the shelf… always repeating itself” in its 1974 Eurovision-winning song “Waterloo.” For 10 points, name this home country of a namesake “House Mafia” and the band (10[1])ABBA. ■END■