Selena Gomez shares a heartwarming throwback from an Olivia Rodrigo concert she attended with her sister, Gracie Elliot Teefey. The 'Only Murders in the Building' star reveals the sweet moment of she and the 9-year-old singing along to 'Drivers License' on TikTok. This comes as Selena is also teasing her and Rema's remix of his song, 'Calm Down.'