The trio were shooting a PSA For the Rock the Vote campaign.
In another she’s posing in front of a skull drawing.
She writes: “my new best friend #gyspy”
In career news Miley will guest star in two episodes of Two and A Half Men.
She “will play Missi, an old family friend of Walden’s [Ashton Kutcher] who comes to visit for a week and develops a relationship with Jake (Angus T. Jones) when he comes home from the Army.”