Lady Sovereign tells Rolling Stone her pick for Worst Song Of 2006.Anything by Fergie - 'London Bridge' in particular, because she's not from London and the song doesn't make sense. Also, that 'let me see your grill' song by Nelly was just too much. This year has been rubbish. Apart from me, it's just been shit.Sov's just sore will.i.am can't ...