Sirius

Sirius is Ariana Murphy's fifth dog.

Trivia

 * Ariana announced on January 31, 2020 that she adopted Sirius.
 * Ariana posted a picture of Sirius with the caption, "y so sirius".
 * His full name is Sirius Black, named after a character from Harry Potter.
 * Sirius is also the name of the "Dog Star." It is the brightest star in the Earth's night sky.
 * Sirius went on tour with Ariana during her Honeymoon Tour along with Toulouse.