Before Maria Khoreva danced her first performance as a member of the Mariinsky Ballet, she was already a superstar, with devoted Instagram fans following her life as a pupil in the Vaganova Academy (follow her @marachok). Her talent was already obvious—as were her exceptionally long lines, elegant technique and charisma—and when she joined the company's corps de ballet last summer, it was apparent that her artistry was also far beyond her 18 years.

Khoreva didn't last long in the corps: in November artistic director Yuri Fateev promoted her to first soloist, the Mariinsky's second-highest rank. Not even one year into Khoreva's professional career, her repertoire already includes the title role in Paquita, the lead in Balanchine's "Diamonds" and Terpsichore in his Apollo, plus Medora in Le Corsaire, which she is performing this week during the Mariinsky's annual tour to the Kennedy Center. Between performances in Washington, D.C., we spoke to Khoreva via Skype about her life in ballet, overcoming injuries and keeping in touch with 300,000 friends on Instagram.