X's got 4 tracks charting:
517 A Great Big World & Christina Aguilera Say Something
939 Maroon 5 Moves Like Jagger (feat. Christina Aguilera) [Studio Recording from the Voice Performance]
951 Christina Aguilera Beautiful
1309 Christina Aguilera, Lil' Kim, Mýa & P!nk Lady Marmalade
What's the number of 2 years old, and older songs in UK iTunes top 1,500 for your fave?
Check UK stats here -
http://www.lpb5.com/lpb1024.php?Region=143444&Albums=0