Microphones are laid out for Rihanna, Calvin Harris and the rest of the Jingle Bell Ball line-up.
This image appears in the gallery:
Countdown To The 2011 Jingle Bell Ball!
![Microphones for Jingle Bell Ball artists](https://assets.capitalfm.com/2011/48/behind-the-scenes-at-the-2011-jingle-bell-ball-21-1322858881-view-0.jpg)
17. Microphones are laid out for Rihanna, Calvin Harris and the rest of the Jingle Bell Ball line-up.
Picture: Richard Johnson