Pixies songs by various artists. Various fake artists. Reminds me of Liam Lynch's "Fake Songs" album (which, conveniently, had a Fake Pixies Song.)
So go for Wave of Mutilation "covered" by the Bee Gees, but stay for the Beach Boys' Levitate Me, by way of Good Vibrations. The Sinatra cover is marred by way-too-synthy brass, but the Bob Marley version of Mr. Grieves is just classic.
And the Prince cover is so Prince, it hurts. But it hurts good.
Good on you, Matthew, whoever you are.