Irina Viktorovna Krug (née Glazko, married Vorobieva; born March 29, 1976, Chelyabinsk) - Russian pop singer, singer of Russian chanson, multiple winner of "Chanson of the Year" award, second wife and widow of Mikhail Krug. Irina Viktorovna Glazko was born in the family of an officer and a draftsman. From childhood she was engaged in the theatrical circle of the local house of culture, she dreamed of becoming an actress. She married early and had her daughter Marina in 1995. Later the couple divorced.
From 1997 to 1999 she worked as a waitress in a restaurant "Malakhit" in Chelyabinsk. In 1999 she met Mikhail Krug, a famous singer of Russian chanson. He immediately offered her a job with him as a costume designer: "For about a year our relationship did not go out of bounds. Everything was on a strict note. It was as if he was looking at me, checking. Took his time to choose. At that point he had already been living alone for eight years. A year later he just took me into his house with the words, "That's it, let's live together!" In 2001, Mikhail and Irina married. On May 26, 2002 Irina and Mikhail Krug had a son, Alexander.
On the night of June 30 to July 1, 2002 Mikhail Krug was killed by unknown assailants in their own home. After Mikhail's death, a family friend Vladimir Bocharov, an author and performer who had previously worked with Mikhail, suggested that Irina perform a few of his songs written in memory of Mikhail. This is how her first album "First Autumn of Separation" appeared.
In 2005, she graduated with honors from Tver State University.
From 2006 to September 2020 she was married to Tver entrepreneur Sergei Belousov (born January 7, 1979).
On September 25, 2013 they had a son Andrei Sergeyevich Belousov.