Hatsune Miku is not just any pop star. In her native Japan, she has sold a staggering amount of records, been featured in video games, manga, cosplay and holds the distinction of having been sent to space in a rocket, twice. But just what is it about this 16-year-old star with two shining turquoise pigtails and a never-ending wardrobe?

Amongst his many accolades, Alejandro Sanz is one of the most commercially successful Spanish singers of all time thanks to his prolific outpouring of smash hit romantic ballads during the 1990s. Expanding from a home grown icon to an internationally-recognised latin music phenomenon, mainstream triumph came calling with the release of his 1997 breakthrough album Mas, catapulting the heartthrob into constant world tours and collaborations with the likes of Shakira and Alicia Keys.