I wouldn't want to be Luke's pillow for all the money in the world...that X Factor house must be running alive with nits, or something horrible.
Can you imagine if he got nits - I wouldn't like to try to get a bone comb through that lot!
I don't get why he never washes his hair.
He probably thinks it makes him different and interesting.
Instead it makes him scruffy and probably smelly.
Imagine the smells trapped in that hair.