Olga Yurievna Seryabkina (Russian: Ольга Юрьевна Серябкина; born 12 April 1985) is a Russian singer-songwriter. She is a former member of girl group Serebro, which won third place in the Eurovision Song Contest 2007, until 2019 when she confirmed that she would leave the group – the last of the original lineup to do so.