I don’t think it did. Now, I’ve always assumed Timberlake said it in the spur of the moment, but it would be interesting if someone could prove it was a scripted remark.
By the way, I find the -aholic construction slightly annoying, and in looking into the matter it appears that comedian Rodney Dangerfield coined the first one - workaholic - and therefore could be considered the grandfather of all similar derivations.
If an alcoholic is addicted to alcohol, does that mean a chocoholic is addicted to chocohol?
Amusingly, the Firefox spellchecker actually recognizes “chocoholic”.
Nope. It really didn’t. I did a pretty thorough newspaper search.
I’d love to know which comic and when it appeared.
The term “jack shit” to mean nothing of significance was pretty much in use(but not much in print) by 1972.
Possibly true. He was on MTV in 1993, and the phrase first starts showing up in Google Groups in 1994.
I"d like to subscribe to your newsletter. 
Judging by the standards of what passes for journalism all too often these days, I wouldn’t.
No, it appears to be a pastor named Wayne E. Oates.
You can also find this in a 2000 William Safire column (which also credits 'Herbert Freudenberger for burnout in the emotional sense).
Going through Google Books appears to confirm this. They give 1969 for the year, but the years they give periodicals are notoriously bad, as you’ll find if you try to search workaholic for earlier citations. They give dozens but all appear to have false dates.
Thanks… I had heard the year 1968 given as the birthdate of “workaholic” but your cite is much more believable than the Rodney Dangerfield one.