Today I'm June 1970's style yfrog.com/kevjcnaj
Yes, yes she is.
Jewel is playing June Carter Cash in the upcoming Lifetime movie, The June Carter Cash Story, which is based on John Carter Cash's telling of his mother's life.
The movie will air on Lifetime but hasn't gotten an official air date yet that I'm aware of.
UPDATE: Here's another photo she tweeted before, showing how she will appear on your screen.