Selena Gomez and Her Younger Sister Were Twinning at 'Frozen 2' Premiere.<br />Gomez and her 6-year-old sister, Gracie Teefey, <br />stole the show at Thursday's red carpet event.<br />The siblings both wore Marc Jacobs outfits, including matching white dresses and gray capes.<br />Gomez shared photos of the night <br />and her movie review on Instagram.<br />Hope I’m officially the best big sissy ever now.. she was LIVING her best life!! Frozen 2 <br />was amazing!!, Selena Gomez, via Instagram.<br />Gomez topped the 'Billboard' Hot 100 for the first time in her career with her new song, “Lose You to Love Me.".<br />The pop star is scheduled to perform new music at <br />the 2019 American Music Awards later this month.<br />'Frozen 2' hits theaters Nov. 22
