Weird Al Yankovic is so busy ripping pop stars apart with his musical parodies that he didn't notice his own mistake in his latest pop send up.
In Word Crimes, Yankovic's parody of Robin Thicke's Blurred Lines, the comedian is so busy preaching about grammatical errors that he, ironically, doesn't notice his own.
Just over three minutes into the song, Yankovic uses a glaring split infinitive when he sings: "Try your best to not drool".
But it didn't take long for the internet to spot it on the very day he released the video.