riddle - I make billions (#4)

I make billions (#4)

For years did a sharp little verse,
Grow fast in our ears like a curse,
A tune on TV,
Did subconsciously,
Cause all to spend much from their purse,

Who / what am I?

Previous riddles in this series:

I make billions #1

I make billions #2
I make billions #3

Answer

After substituting inventive googling for youtube videos for my lack of TV savviness, I'm pretty sure this Billion Maker is

McDonald's.

The poem's solution is clearly something along the lines of

advertising jingle

and then there's the

acrostic "F-G-A-D-C", which seems to be the "I'm Loving It" jingle's tune.