A few weeks ago, Business Insider counted down the 10 worst logo changes of 2013.
There was Yahoo's disappointingly minor change following a month's work of prospective new designs, and the bizarre, "hip" twist made by professional services giant Ernst & Young.
But while these changes were certainly unfortunate, they don't come anywhere near the completely ridiculous fails companies have made in the past.
We're talking about completely inappropriate stuff, like the London 2012 logo, which was accused of resembling everything from Nazi paraphernalia to Lisa Simpson performing oral sex. 
And that's just scratching the surface of our 15 worst corporate logo fails of all time.