Demi Lovato has officially returned to social media after reportedly leaving rehab after her drug overdose over the summer. The 26-year-old entertainer – who is over 90 days sober – posted about voting in the midterm elections on her Instagram account. “I am so grateful to be home in time to vote! One vote can make a difference, so make sure your voice is heard!?? ???? now go out and #VOTE!!!!,” Demi wrote on Instagram, along with her voting photo. Demi’s last post on social media was a message to her fans after her overdose back in August.