Taylor Swift’s singing a new tune. The Reputation star and Rihanna both surprised us this week by turning political. They joined the ranks of people like Yara Shahidi, Kerry Washington and America Ferrera to convey the message that your vote is your power. Swift used Instagram to endorse Phil Bredesen and Jim Cooper, Dems running for Congress in Tennessee, urging fans to register to vote. Meanwhile, Rihanna — who can’t vote herself as she’s not a citizen but a green-card-holder from Barbados — took to Twitter to encourage her fans to vote. We wish more stars would follow suit.