That light's a bit bright isn't it? What wattage do you think that bulb is? She needs a nice soft light to see what she's doing, especially if she's drawing hands, which are notoriously tricky.
People are assuming this means Christina's back in the studio working on new material, which seems a bit presumptuous. She might be recording a podcast about pen-holding.
Which brings us to our favourite Christina Aguilera stationery joke.
Q: What's Christina Aguilera's favourite brand of pen?