(CBS) Fans of underground music were dealt a double blow today as news came out that both Phoebe Snow and Poly Styrene died today. Many expressed their emotions online through tweets and Facebook posts, remembering the icons for their contributions to the music world. Snow was a American singer, songwriter and guitarist. Her biggest hit, 1975's "Poetry Man," showcased her contralto, four octave blues-tinged vocal talent. She died from complications from a January 2010 brain hemorrhage on Tuesday. "The loss of this unique and untouchable voice is incalculable," her manager said to Extra. "Phoebe was one of the brightest, funniest and most talented singer-songwriters of all time and, more importantly, a magnificent mother to her late brain-damaged daughter, Valerie, for 31 years. Phoebe felt that was her greatest accomplishment." Phoebe Snow, "Poetry Man" singer, dies at 60 X-Ray Spex singer Poly Styrene dies at 53 The last Tweet from her official account read: Fans shared their grief about her death as well online:
© 2011 CBS Interactive Inc. All Rights Reserved.