The Voice US coach tweeted a photo from the set last night (17 March) as she ran over her lines.
Wearing a red check shirt and black leggings, a brunette Christina can be seen leaning against a wardrobe while looking intently at the paper.
Captioning the photo, Christina said: "Jade's been busy studying her lines. Can't wait for #Nashville!"
This isn't the first time Christina has teased her role in the ABC drama. Earlier this month she shared a photo of herself getting prepped by a hair and make-up artist.
The photo was taken from the back, so Christina said at the time: "Look at all that hair! Having lots of fun on the set of #Nashville. More to come!"
Christina will play a popstar Jade St. John whose dream it is to record a country album.
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