South Korean celebrity couple Song Hye-kyo and Song Joong-ki are splitting up after less than two years of marriage. The pair exchanged vows in 2017, after co-starring in the TV drama hit "Descendants of the Sun" where both their characters had also fallen in love. Dubbed as the "Song-Song couple" due to their identical surnames, they are one of South Korea's highest-profile celebrity pairs and have a huge following across Asia and the rest of the world. "Personality differences" have been cited as a reason for their divorce.