Even Demi's own little sister, Madison de la Garza, has successfully completed the Demi Lovato dance challenge (according to Reign, she "SLAYED it!!"), so surely Demi's attempt is coming soon. We can't wait.Instagram contentView on InstagramRelated: starring opposite one another in a movie. Although we continue to wish for a possibleTwilightreunion “To all the friends and family that have my back and all the friends and family I've never met who show love and support when everyone is looking and when no one is looking...All praise, gratitude and thankfulness,” she wrote.Instagram contentView on InstagramAriana Grande Taylor Swift's Political Instagram Post Is a Sign of the Post–Brett Kavanaugh TimesChrissy Teigen