iTunes was just a media play at first place, now it have become the biggest online music retailer of world's pop music market. Now take a look and have a good ear-journey with the best selling music on iTunes for 2012, they the most popular music over the year.

Top Selling Singles

Carly Rae Jepsen - "Call Me Maybe"

Gotye - "Somebody That I Used To Know" featuring Kimbra

fun - "We Are Young" featuring Janelle Monae

Maroon 5 - "Payphone" featuring Wiz Khalifa

Nicki Minaj - "Starships"

One Direction - "What Makes You Beautiful"

Kelly Clarkson - "Stronger (What Doesn't Kill You)"

fun - "Some Nights"

Flo Rida - "Whistle"

Flo Rida - "Wild Ones" featuring Sia

Top Selling Albums

Adele - 21

Taylor Swift - Red

Mumford and Sons - Babel

One Direction - Up All Night

fun - Some Nights

Mumford and Sons - Sigh No More

The Lumineers - The Lumineers

John Mayer - Born and Raised

Maroon 5 - Overexposed

Jason Aldean - Night Train