Stop Draggin My Heart Around with Sheryl (karaoke?)

[diamondsnake]

I downloaded SDMHA with Stevie on lead vocals and Sheryl doing Tom's part. All the words are messed up and Stevie seems to be really letting loose (aka she seems not-sober!) and I know she wasn't doing cocaine post-metting-sheryl. So, is this that drunken karaoke I had heard so much about? And when was this done and was it announced or did her and sheryl just decide to go clubbing one night? What is this, I'm intrigued?