Advertising Age's choice for #1 Ad of 2008:
NBA: "LeBron & Garnett"
Agency: Goodby, Silverstein & Partners
Executive Creative Director/Copywriter: Jamie Barrett
Associate Creative Director/Copywriter: Ari Weiss
Associate Creative Director/Art Director: Stefan Copiz
There are a series of ads like this, from the NBA. Check out the NBA youtube channel for the rest of the ads.
Here's a video about the making of the ads:
This ad hit the pop culture scene - check out the Time Magazine cover, and the Saturday Night Live skit.
watch the SNL skit here.