(picture from the Budweiser site please apologies for all copyright infringement but this is a non profit making site)

The american brand of Beer BUDWEISER are currently running an advertising campaign which titled the Budweizer lizards. Featured as backing music to the TV advert is the track Back in Black

E-mail reply from BUDWEISER
We do have a commercial currently airing in the United States that has AC/DC
music in it.  It stars the Lizards (Frank & Louie) and the Ferret.  At this
time, we do not have it available on our site, nor do we have future airing
information pertaining to UK TV.

E-mail reply from Vinnie at the un-official Budweizer lizards site

Yes, Budweiser Beer has a commercial featuring the Lizards and introducing the ferret with AC/DC's Back in Black playing in the background. The commercial is sort of set up like a concert with flash bombs, Frankie the Lizard holding up a lighter and the ferret singing a few lines....

Why not chek out Vinnie's site Budweiser Lizards (unofficial site)