Siiri Sisask in 2014.
Siiri Sisask (born 21 September 1968) is an Estonian singer, stage and film actress, and politician.
Sisask was born in Rapla. Her older brother is composer Urmas Sisask. She was a member of X Riigikogu, representing the Res Publica Party.
She has been a member of several notable musical collectives, including:
- 1986: T-Klaas ensemble – lead singer
- 1987: Ruja ensemble – lead singer
- 1988: Vitamiin ensemble – lead singer
- Ultima Thule – lead singer.