I can't think of a particular line right now, but it's a general feeling that he isn't engaging with the lyrics, or the song itself, as if he finds it hard to interpret it. I think I notice it most on Satellite (which weirdly is my favourite cover of his but anyway..). The 'feel' for the song isn't there as it is with all his own stuff.
It's hard to be objective about someone so wonderful but sometimes we have to be, and it's good for the soul
Never really liked his version of Sweet Dreams..Hips Don't Lie is fun but not really a serious cover, it makes me laugh though.
I used to think about which songs I'd love to hear Mika cover, but now I just think I'd most likely be disappointed by them, so I'd rather not hear any!
I bet Mikey and Martin bullied Mika into Teardrop. Or blackmail. Or something.