From her Twitter & Instagram accounts. You can hear her giggle and mention that it tickles.
Video: http://instagrabbr.com/image/mileycyrus/785019077902152510_325734299
Just saw this post and I realized I had a few different clips of this from back in the day. Not really sure where I got them. There is some titling on some of them, but it might not be from the original producer. I have 8 clips. Some might be duplicates, or have some duplicate parts. I just...