"10 billion songs downloaded from iTunes. And counting," read an online counter at the Apple website.
The California company behind the iPod, iPhone and Macintosh computer had promised a $A11,202 iTunes gift card tothe person who downloaded the 10-billionth song.
To mark the landmark download, Apple provided a list of the all-time top songs on iTunes.
I Gotta Feeling by the Black Eyed Peas took the top slot followed by Lady Gaga's Poker Face and Boom Boom Pow, also by the Black Eyed Peas.
The iTunes Music Store was launched in 2003 at a time when the music industry was struggling with digital piracy and plummeting album sales.
Initially offering songs for 99 cents, iTunes has expanded over the years and now offers television shows, movies, podcasts and other content.
In April of last year, Apple changed its song prices and individual tunes now sell for 69 cents, 99 cents or $US1.29 with studios deciding pricing.
Apple reportedly made the pricing concession in exchange for studios backing off demands for digital rights management software that prevents music from being copied.
