Bet you didn't realize this, but the music of the White Stripes is simply ideal for Yoplait commercials. Replace the guitar with someone's voice saying "Yum" ("yummmm yum yum yum yum yummm yum") to the tune of "Seven Nation Army" and you've got a winner. Stephen Colbert realized this and forced Jack White to participate in creating a commercial on the spot.
White stays remarkably deadpan throughout, which is impressive, but maybe he's just down in the dumps since he and his wife just got divorced (in the weirdest manner possible, as befitting Jack White). This Colbert-White collabo has great promise. They even share a love of Bob Seger, as it so happens: