He worked with famous Russian singers such as Irina Allegrova, Valery Leontiev, famous Russian composer Alexey Garnizov, “Todes” dance group, famous Russian dancer M. Isambayev, famous Russian actress comedian Clara Novikova (music arrangements for her plays), producer Nerses Hovhannisyan (Mosfilm) and others.
Irina Borzova | Irina Bokova | Irina Allegrova | Princess Irina Alexandrovna of Russia | Irina Viner | Irina Brook | Irina Solovyova | Irina Saari | Irina Rodnina | Irina Pantaeva | Irina Livezeanu | Irina Kupchenko | Irina Ionesco | Irina Demick | Irina Alfyorova | Irina | Tsarevna Irina Mikhailovna of Russia | Princess Irina Nikolaïevna Orlova | Princess Irina Nikolaievna Orlova | Irina Valyukevich | Irina Shayk | Irina Safarova | Irina Rodina | Irina Ratushinskaya | Irina Privalova | Irina Papkova | Irina Negrea | Irina Muravyova | Irina Lenskiy | Irina Krush |
Other artists that have been perennial Pesnya goda winners include Iosif Kobzon, Valery Leontiev, Valentina Tolkunova, Edita Piekha, Laima Vaikule, Igor Nikolayev, Irina Allegrova, Philipp Kirkorov, and Alla Pugacheva.
Keosayan is the director of many modern Russian films included "Kat'ka i Shiz" (1992), "Bednaya Sasha" (1997), "Landysh Serebristyy" (2005), "Zayats nad bezdnoy" (2006), the "12 stul'yev" musical (2003), a large number of clips for Mikhail Shufutinsky, Igor Sarukhanov, Irina Allegrova.