Monika Liubinaitė (born 9 February 1988), known professionally as Monika Liu, is a Lithuanian singer-songwriter. She is set to represent Lithuania in the Eurovision Song Contest 2022 in Turin, Italy with the song "Sentimentai".
Liubinaitė was born in Klaipėda, in the family of a music teacher and a musician. She studied at Klaipėda Ąžuolynas Gymnasium, attended ballet lessons when she was little. As a student, Liubinaitė moved to Boston and later to London. The performer currently lives in Vilnius.
Liubinaitė began her musical career at the age of five when she started to play the violin. She discovered singing ten years later, and won the Dainų dainelė ("Song of Songs") competition in 2004. After graduating from high school, Liubinaitė studied jazz music and vocal studies at the Faculty of Music of Klaipėda University, and later went to the United States, where she studied at Berklee College of Music in Boston. After leaving the college, the singer moved to London, where continued to compose songs. She has worked with the famous producer Mario Basanov, collaborated with the electronic music family Silence, recorded the song "Not Yesterday" with the band Sel, and appeared on the LRT television project Auksinis balsas ("Golden Voice").