Last week, the music industry mourned the loss of Donna Summer
, who passed away at 62 following her battle with cancer. And, on Sunday, the genre must say goodbye to another legend, the Bee Gees' Robin Gibb, who died
after being diagnosed with colon and liver cancer. Following news of the loss, famous friends and fans have logged onto Twitter to pay tribute to the Bee Gees singer. Read below to see what some celebrities are saying about Gibb.