McDonald's egg mcmuffin

Hey hey.. I was watching tv recently, and this McDonalds ad came on, promoting the Egg McMuffin and coffee

Ive been tryin to find this song for a while, but no luck
Wondering if anyone can help me

Basically it's some guy that opens his Egg McMuffin and a song randomly starts playing, then closes it, song stops playing, opens it song starts playing, until he finally realizes theres an orchastra behind him thats playing the music...

HELP!

i believe it's the overture to Rossini's opera "William Tell" which also gave us the theme to "The Lone Ranger" if anyone's old enough to remember that gem.

I'd like to say thats the one... But unfortunately, its not