Tünde Bornemisza (often known professionally by her nickname Tynna) is a singer and songwriter best known as one-half of the German electronic-pop sibling duo Abor & Tynna (alongside her brother Borbás "Abor" Bornemisza). Of Hungarian descent and based in Germany, the sibling duo captured widespread European attention when they were selected to represent Germany in the Eurovision Song Contest 2025 with their high-energy dance-pop track "Baller.