NEW YORK -- The Eagles are postponing their Kennedy Center tribute because of co-founder Glenn Frey's health issues.

The Washington-based Center announced Wednesday that the Eagles will not participate in a Dec. 6 ceremony that will also honour Carole King and George Lucas among others. Frey, who turns 67 on Friday, has long suffered from intestinal problems which he has blamed on his drug use during the band's early years, he told the Detroit Free Press in a 1988 interview. He is expected to undergo surgery. Frey sang lead on the Eagles' first hit, "Take It Easy," and on such favourites as "New Kid in Town" and "Already Gone."

The Kennedy Center plans to honour the Eagles in 2016.