Sun Tiantian (simplified Chinese: 孙甜甜; traditional Chinese: 孫甜甜; pinyin: Sūn Tiántián; born 12 October 1981 in Zhengzhou, Henan, China) is a Chinese female tennis player.

In September 2000, Tiantian won two successive US$10,000 ITF singles titles, a feat she would repeat in June 2001, when she won another two back-to-back.

In 2002, she found repeat success at the next level up, winning two $25,000 tournaments: firstly in April, at Ho Chi Minh City, Vietnam (beating countrywoman Zheng Jie in the semi-final and Korean Jeon Mi-ra in the final); and then in August at Beijing (beating Zheng Jie in the semi-final again, and Rika Fujiwara of Japan in the final)

In 2003, she reached the final of a $50,000 tournament at Modena despite entering as a lucky loser to countrywoman Yan Zi in the final round of qualifying. Having defeated several high-quality opponents in the forms of Martina Suchá, Maret Ani and Gala León García, she lost in the final against Melinda Czink.

This year, she also gained entry into several WTA tournaments, most notably coming through qualifying at Doha by defeating Yuliana Fedak, Ľubomíra Kurhajcová and Maria Sánchez Lorenzo, only to lose in the deciding set of her opening round match against Nicole Pratt; and at the US Open after a narrow victory over Selima Sfar, only to lose to Saori Obata at the first hurdle in the main draw. But she finished the year ranked World No. 141.

Martina Hingis (born 30 September 1980) is a retired Swiss professional tennis player who spent a total of 209 weeks as World No. 1. She won five Grand Slam singles titles (three Australian Opens, one Wimbledon, and one US Open). She also won nine Grand Slam women's doubles titles, winning a calendar year doubles Grand Slam in 1998, and one Grand Slam mixed doubles title.

Hingis set a series of "youngest-ever" records before ligament injuries in both ankles forced her to withdraw temporarily from professional tennis in 2002 at the age of 22. After several surgeries and long recuperations, Hingis returned to the WTA tour in 2006. She then climbed to world number 6 and won three singles titles. On 1 November 2007, Hingis announced her retirement from tennis after testing positive for cocaine during Wimbledon in 2007. She denied using the drug, but decided not to appeal the imminent ban.

In June 2011, she was named one of the "30 Legends of Women's Tennis: Past, Present and Future" by Time.

Hingis was born in Košice, (then part of Czechoslovakia, now in modern Slovakia), to accomplished tennis players Melanie Molitorová and Karol Hingis. Molitorová was a professional tennis player, who was once ranked tenth among women in Czechoslovakia, and was determined to develop Hingis into a top player as early as pregnancy. Her father was ranked as high as nineteenth in the Czechoslovakian tennis rankings. Hingis's parents divorced when she was six, and she and her mother relocated around a year later to Trübbach in Switzerland. Her father, who continued to live in Košice as a tennis coach, said in 1997 that he had seen little of his daughter after the split.

Jackie Chan, SBS, MBE (born Chan Kong-sang, 陳港生; 7 April 1954) is a Hong Kong-born Chinesestuntman, actor, and director whose perilous acrobatic stunts and engaging physical humour made him an action-film star in Asia and helped to bring kung fu movies into the mainstream of American cinema. In his movies, he is known for his acrobatic fighting style, comic timing, use of improvised weapons, and innovative stunts. Jackie Chan has been acting since the 1960s and has appeared in over 100 films.

Chan has received stars on the Hong Kong Avenue of Stars and the Hollywood Walk of Fame. As a cultural icon, Chan has been referenced in various pop songs, cartoons, and video games. An operatically trained vocalist, Chan is also a Cantopop and Mandopop star, having released a number of albums and sung many of the theme songs for the films in which he has starred. In addition to acting, Chan pursued a career in the Hong Kong music industry, releasing a number of original albums beginning in 1984. He founded the Jackie Chan Charitable Organization in 1998, which, among other projects, offers scholarships to Hong Kong youths, and he worked as a goodwill ambassador for UNICEF.