Scarlett Johansson refuses to give up on this whole singing experiment of hers and this time has done a cover of Jeff Buckley's Last Goodbye. The verdict is exactly the same as when she released an entire album of Tom Waits cover songs: she isn't a horrible singer but she's certainly not good enough to become a recording artist.
Someone needs to sit Scarlett down and make sure she understands that just because you're awesome at karaoke doesn't mean people are actually going to pay to hear you sing.