Established popular artists who released real stinkers

So yesterday, I was at my local library getting some beach reading material and out of curiosity,  I checked out a copy of U2's "Songs of Innocence". I remember the controversy about U2 distributing the album to all Iphones without permission, but had not heard the release. I have been a fan of U2 from their very beginning and even in the past few years as they have aged, I have always found at least a couple of tunes on their releases that I enjoy. Man, does this album suck. I appreciate the fact that sometimes artists can no longer hit the high notes like they used to, but it seems to me that the best ones still manage to write compelling arrangements and create rewarding releases. It got me thinking, what are some other examples where artists have laid eggs to stink up an otherwise worthwhile body of work? Lou Reed's Lulu comes to mind.