Ex-Eagles guitarist Don Felder is on the road promoting his new solo record "Road To Forever" and touring, but he's always going to be asked about his years with the band that made him famous.

Felder remembers that the Eagles chart-topping hit "Heartached Tonight" from The Long Run album, almost didn't happen!

The band was in the studio and realized that Glenn Frey wasn't singing lead on anything besides "Teenage Jail", so Frey, Don Henley and J.D. Souther came up with sort of a Sam Cooke-esque song that had hand clapping and no chorus. So Frey called another friend of theirs: Bob Seger!

Frey called Seager and sang what they had, and when they got to where the chorus should be, Seger jumped in and sang "There's gonna be a Heartache Tonight, a Heartache tonight, I know".

The rest, as they say, is music history.