The song used in this Castle promo is driving me crazy -- I can't for my life identify it.
It starts about 5 seconds in. After that, the only words I've been able to make out are around 17 seconds, he sings "You take/took/(something) a little piece of my heart." Google search turns up nothing but Early Man (not it), Reshmonu (very not it) and of course Janis Joplin (extremely super absolutely not it).
Can anyone help? Know the song? Artist? The lyrics at the end of the clip? Anything??