Stronger singer Kelly Clarkson chats to us about her Dark Side, the difficulties of writing when happy and what's to come next.

Musing on her latest single Dark Side, she told us:

"It's more of like a lullaby, you know.  Like a creepy one.  I find that most lullabies are creepy if you think about it. 

"The cradle rock, it breaks, the baby falls... I'm like, what?  Don't sing that fricken song to me - that's horrible!"

Listen to the full interview below.