Isabel Gülck, known professionally as Isi Glück, is a German partyschlager singer. Since 2017, she has performed regularly at the Mega-Park in Mallorca and, in winter, at the "Kuhstall" in Ischgl. From Wikipedia
RTL slimmed the jury to three to inject fresh creative tension in a rollout that begins on RTL+ before its spring 2026 broadcast.
