Erlend Guttulsrud Kristiansen (born on January 24, 1997), also known professionally as ErlendF, is a singer, songwriter, keyboardist, book author, and primary school teacher. He competed in the Melodi Grand Prix Junior 2011 but did not advance to the superfinal. In 2025, he won Eurosong 2025 and represented Ireland in the Eurovision Song Contest 2025 but did not advance to the grand final with 28 points and finished 13th out of 16 in the semi-finals.