This Burger King commercial promotes the new 99¢ Kids Meal featuring Spongebob Squarepants. It seems to target parents in their mid- to late-twenties with children young enough to be familiar with and enjoy Spongebob. The song is a remix to the formerly popular "Baby Got Back" by Sir Mix-A-Lot in 1992, which grabs the attention of those who remember the song.
The fact that Spongebob appears in the commercial means that young viewers will see the ad, making it even more important for the content to be appropriate. However, there are parts of the commercial that are somewhat questionable do to the portrayed sexuality.