Remember when radio DJs used to say a hit song was "number one with a bullet"? Well, this one was the slowest bullet in rock history. "Time of the Season," by The Zombies, released in March 1968, reached #3 on the Billboard charts a full year later.

Rod Argent and Colin Blunstone are in their 80s now. In their teens they were members of The Zombies, part of the 1960s British pop invasion that began with The Beatles, except that, for The Zombies, success took a lot longer to catch up with them.

Rod Argent and Colin Blunstone of The Zombies, at Abbey Road Studios in London. CBS News

Of the five original Zombies, four survive: Argent, Blunstone, Hugh Grundy and Chris White. The fifth member, Paul Atkinson, died in 2004.

"We were friends, really, right from the very start," said Agent.

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