1. Song Joong Ki, 31, and Song Hye Kyo, 35

Humphrey Bogart and Lauren Bacall did it. Brangelina did it (till they didn't).

And now, Song Joong Ki and Song Hye Kyo are doing it - getting together and tying the knot in real life, after playing a sizzling couple on screen.

The Song-Song couple, as they are known in South Korea, paired off as a soldier and a doctor in a war-torn fictional land in last year's hit romance Descendants Of The Sun.

Off screen, they repeatedly denied that they were dating, before dropping a surprise wedding announcement on Wednesday.

2. Nicky Wu, 46, and Liu Shishi, 30

When the Scarlet Heart stars finally wed in Bali last year, fans hailed it as the "best special episode" of the Chinese drama.

The show starred Wu as the fourth prince and the future Yongzheng emperor, and Liu as Ruoxi, his time-travelling lover.

Wu said he had feelings for Liu but did not act on them immediately as he thought they could be an effect of filming the drama. So he waited till the sequel, Scarlet Heart 2, which was filmed in 2013, to confirm his feelings and to date her.

The couple's wedding was officiated by actor Damian Lau, who played the Kangxi emperor in the show. Actors Yuan Hong, who played the 13th prince, and Annie Liu, who played Ruoxi's sister, Ruolan, were among the groomsmen and bridesmaids.

3. Chen Xiao, 29, and Michelle Chen, 34

Although they played the couple, Yang Guo and his mentor Xiao Long Nu, in a television adaptation of The Romance Of The Condor Heroes, they did not fall in love on set.

However, when he visited Taiwan in 2015 for work, she met him for a catch-up and sparks flew, said Apple Daily. They married on his 29th birthday in July last year, and welcomed a son five months later.

4. Christopher Lee, 45, and Fann Wong, 46

Once upon a time in Singapore, they played Yang Guo and Xiao Long Nu too. That was in 1998, before they later began a long courtship and finally wed in 2009. Their son, Zed, a National Day baby, will be three this year.

5. Tomokazu Miura, 65, and Momoe Yamaguchi, 58

The golden couple of Japanese entertainment starred in a string of movies and television shows in the 1970s. She retired in 1980, at the age of 21, to marry him. They have two sons.

According to The Japan Times, Miura opened up about his marriage in an interview in 2011. He said he and his wife never fought, nor talked about the old days.