. >> and lovely woman from indiana, jimmy buffett's "cheeseburger in paradise" of these burger toppingseese. >> i said geez. >> i know that, but it is a joke. >> bacon. >> yes! >> okay. jimmy b jimmy buffett -- >> there a lot of money over r >at aacn iit, mark? >> i can't believe he mentioned bacon, because everybody likes bacon. >> and the hit song seemed to work anyway. kath, back over to you. >> and retired from teaching, how many years? >> 34 half. >> and which fast food chain had a series of popular ads featuring the topic "where's the beef?" >> wendy's. >> and that is by the way, one of the brilliant ad campaigns, don't you think? >> it was a good ad campaign, because where is the beef, and you want the same amount of beef to the bun, and if you don't have the right amount of beef, it is not satisfying, you know. >> yes. and kath? >> and to charlottesville, virginia, and the usda recommends hamburgers be cook canned to an internal temperature of? >> 160 degrees. >> everybody won today. >> how is it possible that everybody got it right. 160, and why is that? >> well, 160 kils every