ok well this is coming from opinion and observations (and for the record, I dont like him): 1.) he is cute-ish. to girls he is the perfect boy. with his skatboy hair, smile and eyes. 2.) he is a good singer, to other girls. and 3.) he seems like the "boy next door".
In my opinion, he seems like the total package to girls. and he was discovered on youtube so that was a musical. and he was born with musicalness (i dont think thats a word) so he should use it. u dont have to like him, I dont! :)