Maurice Gibb, bassist, keyboardist, and vocalist for pop superstars the Bee Gees, is in critical but stable condition today (Jan. 10) at Mount Sinai Medical Center & Miami Heart Institute in Miami

Maurice Gibb, bassist, keyboardist, and vocalist for pop superstars the Bee Gees, is in critical but stable condition today (Jan. 10) at Mount Sinai Medical Center & Miami Heart Institute in Miami Beach, Fla. Gibb, 53, was admitted on Wednesday and underwent emergency abdominal surgery for a blocked intestine yesterday (Jan. 9), according to a hospital spokesperson. Maurice is a resident of Miami.

As previously reported, the Bee Gees recently decided to take a hiatus after 40 years together as a group. Maurice's brother Barry, who recently signed an exclusive worldwide publishing deal with Warner/Chappell Music, has been collaborating with Michael Jackson on new material for an as-yet-undisclosed project.

The Bee Gees are one of the most successful pop acts of all time, having been certified by the Recording Industry Association of America for more than 25 million albums shipped in the U.S. over the course of a career that has spanned five decades. The group's most recent studio effort, 2001's "This Is Where I Came In" (Universal) debuted at No. 16 on The Billboard 200 and has sold 243,000 copies in the U.S., according to Nielsen SoundScan. A compilation, "Their Greatest Hits -- The Record" (UTV), released later that year, has sold 544,000 copies in the U.S., according to Nielsen SoundScan.

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