The first that we see of Myron would be on January 16, 2017 on Mac's Instagram page. A few days later, Grande then posted a short boomerang on Instagram Story of Myron on Mac's birthday. Through various times through 2017, Myron could be seen on both Mac's and Grande's Instagram pages. On April 24, 2018, Grande said that Myron had been living with her for a few month and he was "her everything". On April 28, 2018, Grande brought Myron along with Toulouse with her to New York.
After Grande and Miller broke up, Myron continued to live with Grande and the rest of her pups, as he was constantly seen on her Instagram Story with Toulouse. On August 26, 2018 (National Dog Day) Ariana's mother confirmed on twitter that Myron was Ariana's dog. On September 7, 2018, Mac Miller died of a suspected drug overdose. Days later, on September 19, Grande posted pictures of Myron, and her other dogs, on her Instagram stories, meaning up that Ariana is now taking care of him full time.