With the inability of Clark to sing... I never knew that Dean Cain couldn't sing. What gave me the impression that Clark couldn't sing was the Christmas episode in forth year. When Lois is trying to inspire hope in people, she starts trying to encourage them to sing Christmas songs. At first she isn't very successful. But Clark gives her a look which, to me, was meant to encourage her to continue trying. At that point, if he had really wanted to help, he would have joined in, singing with her to encourage others to do the same. The fact that he didn't told me that Clark Kent couldn't sing.
