Apple has sold half a billion tracks through the iTunes Music Store.

The purchaser of Apple's 500,000,000th song will receive a prize of ten iPods, an iTunes gift card for 10,000 songs, and an all-expenses paid trip for four to see Coldplay on their world tour.

Apple announced the global iTunes giveaway on July 5. During the run up to the 500 millionth song, Apple gave away an iPod mini and an iTunes gift card for 50 songs to each customer who purchased a song at each 100,000 interval.