# Why are we allowed to use を particle with na-adjectives?

Can someone explain the usage of a _na_-adjective with the を particle? I cannot understand why we can say > ほうれん草を嫌いな人もいる。 because I'd thought that it had to be a が or の particle instead of an を. Also, why can we say > きみがなぜジャズを嫌いか私にはわからない。 Shouldn't it be きみがなぜジャズが嫌いか私にはわからない? (Source: [tatoeba.org](http://tatoeba.org/eng/sentences/search?query=%E3%82%92%E5%AB%8C%E3%81%84&from=und&to=und))