Jimi Jamison died of a heart attack at his home on Aug. 31, Sunday, in Memphis, Tenn., the rock star's booking agent Sally Irwin confirmed to the Los Angeles Times.

A day before his death, the 63-year-old singer performed with the rock band Survivor in Northern California, TMZ reported.

Survivor took to Twitter to express their condolences upon learning Jamison's death.

"Survivor is very shocked & saddened by the passing of our brother Jimi Jamison. Our thoughts, love & prayers go out to his friends & family," the rock band tweeted.

The Survivor band is set to perform at Wild Horse Pass Hotel & Casino on Oct. 4 but the show has been cancelled shortly after the news about Jamison's death broke, AZ Central has learned.

Further details about Jamison's death are yet to be released.

In 1984, Jamison joined Survivor after its lead singer David Bickler left the group due to voice issues following the success of the hit "Eye of the Tiger" in 1982.

From the mid-to-late 1980s, Jamison was the lead singer of Survivor with the hits "The Search Is Over," "Is This Love," "High on You," "Burning Heart" from the film "Rocky IV" and "The Moment of Truth" from the film "The Karate Kid," which was his first recording with the band.

Four years after disbanding in 1989, Survivor reunited with Bickler back on vocals replacing Jamison.

From 2000 to 2006 and in 2011, Jamison reunited with Survivor. In 2005, Jamison sang "Eye of the Tiger" for the Emmy-nominated Starbucks commercial.

As a solo artist, Jamison co-wrote and sang the theme song for "Baywatch" titled "I'm Always Here."

Before joining Survivor, Jamison also sang for bands Target and Cobra in the early 1980s.

While with the Cobra band, Jamison also sang background vocals on albums by several artists including George Thorogood, Joe Walsh and ZZ Top.