It's been a couple of months, but...
The Troggs' Wild Thing for Geico
The Zombies' Time of the Season for Coors
Brandy (You're a Fine Girl) by Looking Glass for Ford F-150 trucks
The Isley Brothers' It's Your Thing for H & R Block's do-it-yourself software
And two for Applebees that actually made some sense -- The Four Tops'
Sugar Pie Honey Bunch, and Baby One More Time by Britney Spears
for the return of their all-you-can-eat riblets.