R. Madhavan (born 1 June 1970) is an Indian actor, writer, film producer and television host. Madhavan has received a Filmfare Award, an award from the Tamil Nadu State Film Awards alongside recognition and nominations from other organisations. He has been described as one of the few actors in India who is able to achieve pan-Indian appeal, appearing in films from seven different languages.

Madhavan began his acting career with television guest appearances, including a role on the Zee TV prime-time soap opera Banegi Apni Baat in 1996. After appearing in commercials and in small roles, he later gained recognition as the husband going through the traumas of his marriage in Mani Ratnam's successful romantic film Alaipayuthey (2000). Madhavan soon developed an image as a romantic hero with notable roles in two of 2001's biggest grossers, Gautham Menon's directorial debut Minnale and Madras Talkies' Dumm Dumm Dumm. He worked with Ratnam again in the critically acclaimed 2002 film Kannathil Muthamittal playing the father of an adopted girl, whilst he enjoyed commercial success with his role in Linguswamy's action film, Run (2002).

Song Ji-hyo (born Cheon Seong-im, August 15, 1981) is a South Korean TV and film actress. She is well known for her portrayal of ballerina Min Hyo Rin in Princess Hours, Lady Ye So-ya in MBC Jumong and as the Queen in A Frozen Flower.

Song was co-MC with Heechul of Super Junior on SBS's weekly live music show Inkigayo, from 11 November 2007 to 4 May 2008. Song also co-MC the 2009 Dream Concert with Heechul, which was held at the Seoul World Cup Stadium on 10 October.

She is currently a cast member of SBS variety show Running Man. Song was originally a guest for the second (episode 2-3) and third landmark (episode 4-5). She officially joined the program in the fourth landmark (episode 6) but was unable to attend until the fifth landmark (episode 7). Some of her characters on the show are Mong (blank) Ji-Hyo, Ace Ji-Hyo, Bad Ji-Hyo and also one half of the Monday couple with Kang Gary.

On 19 September 2011, Song was sent to an emergency room with breathing difficulties following an all-night shoot on the set of MBC television series Gye Baek. This also led to her cancelling her appearance on episode 63 and 64 of Running Man.