After much laboured research (well, a few minutes on Google) the mysteries about the most unusually named X Factor contestant ever have been revealed. 
Rhydian, a Welsh name, unforunately does not translate as 'Arrogant Singing Cyborg from the 22nd Century' but is a lengthened version of the name Rhydd which means 'ford'.
A ford is a place in a watercourse (most commonly a stream or river) that is shallow enough to be crossed by wading, on horseback, or in a wheeled vehicle.
Labels: about rhydian, X Factor