By CHELSEA HUANG
When news broke on Twitter that Joan Rivers passed away Thursday afternoon, celebrities and friends immediately began posting tweets in memory of the late comedienne.
As a trailblazer and comedy legend, Rivers touched many lives in Hollywood throughout her 50-year career.
Her influence is evident in the personal memories stars have been sharing with fans -- and the sheer reverence placed upon the 'Queen of Comedy.'
Stars are also taking a moment to send their thoughts to Joan's daughter, Melissa Rivers.
See celebrities' tweets in reaction to news of Joan Rivers' death:
Plus, Joan Rivers throughout the years: