Danny Federici, the longtime keyboard player for Bruce Springsteen whose stylish work helped define the E Street Band's sound on hits from "Hungry Heart" through "The Risingpent," died Thursday at 58 years old, relates The Associated Press. 

Federici, who had battled melanoma for three years, died at Memorial Sloan-Kettering Cancer Center in New York. News of his death was posted late Thursday on Springsteen's official Web site.

He last performed with Springsteen and the band last month, appearing during portions of a March 20 show in Indianapolis.

"Danny and I worked together for 40 years — he was the most wonderfully fluid keyboard player and a pure natural musician. I loved him very much ... we grew up together," Springsteen said in a statement posted on his Web site.

Springsteen concerts scheduled for Friday in Fort Lauderdale, Fla., and Saturday in Orlando were postponed.

At the time, Springsteen described Federici as "one of the pillars of our sound and has played beside me as a great friend for more than 40 years. We all eagerly await his healthy and speedy return."

Besides his work with Springsteen, Federici played on albums by an impressive roster of other artists: Van Zandt, Joan Armatrading, Graham Parker, Gary U.S. Bonds and Garland Jeffreys.