McDonald's still lovin' its ad campaign

If you were McDonald's, would you tinker with a Big Mac? And if your sales just climbed 10% in this stink-bag of an economy, would you dump the ad campaign that was partially responsible? We didn't think so. Neither did the Golden Arches.

McDonald's unveiled its "new" campaign this week -- and it's one that we're all quite familiar with. After seven years, the "I'm Lovin' It" campaign is the longest-running ditty in the fast food giant's portfolio, according to Crain's Chicago Business. Be ready to hear that "Da-da-da-da-dah" in your head for at least several more months. The inevitable axe that befell McDonald's previous Madison Avenue hits, "You Deserve a Break Today" and "Food, Folks and Fun," isn't going to come crashing down on "I'm Lovin' It" just yet.