Johannes Pietsch, known by his stage name JJ, is an Austrian-Filipino singer and countertenor from Vienna. He represented Austria at the Eurovision Song Contest 2025 in Basel with his song “Wasted Love” and went on to win the competition, becoming only the third Austrian to do so.

In the past, he attended the opera school of the Vienna State Opera and has been studying at the Music and Arts University of the City of Vienna since 2023.