Jerry Rice is part of a new McDonald's campaign called Game Time Gold, which includes TV commercials. The campaign itself involves peeling off stickers from McDonald's soda cups (and maybe other stuff), and there are NFL logos on them. In the commercial, Jerry peels one off for the Dallas Cowboys. A man and his son are walking along in 49ers gear, and they see Jerry wearing a Cowboys jersey.
I suppose we could get in an uproar about Jerry actually wearing a Cowboys jersey, but it cracked me up nonetheless.