Zootopia
Zootopia (released as Zootropolis or Zoomania in several countries) is a 2016 American 3D computer-animated buddy cop comedy film produced by Walt Disney Animation Studios and released by Walt Disney Pictures. It is the 55th Disney animated feature film, directed by Byron Howard and Rich Moore, co-directed by Jared Bush, and stars the voices of Ginnifer Goodwin, Jason Bateman, Idris Elba, Jenny Slate, Nate Torrence, Bonnie Hunt, Don Lake, Tommy Chong, J. K. Simmons, Octavia Spencer, Alan Tudyk, and Shakira. Taking place in the titular city where anthropomorphic mammals coexist, it tells a story of an unlikely partnership between a rabbit police officer and a red fox con artist, as they uncover a criminal conspiracy involving the disappearance of predators.
Zootopia
"Zootopia" premiered at the Brussels Animation Film Festival in Belgium on February 13, 2016, and went into general theatrical release in Disney Digital 3-D, RealD 3D, IMAX 3D, and 4DX formats in the United States on March 4. "Zootopia" received generally positive reviews from critics, who praised its screenplay, animation, voice acting, subject matter, and Michael Giacchino's musical score. It opened to record-breaking box offices in several countries, and earned a worldwide gross of over $1billion, making it the fourth-highest-grossing film of 2016. The film earned numerous accolades; it was named one of the top ten best films of 2016 by the American Film Institute, and received an Academy Award, Golden Globe, Critics' Choice Movie Award, and Annie Award for Best Animated Feature Film, it also received a nomination for the BAFTA Award for Best Animated Film, but lost to "Kubo and the Two Strings".
Jolin Tsai filmography
Taiwanese entertainer Jolin Tsai ( ) has been featured in two feature films, five short films, six television series, and two variety shows. In 2001, Tsai made her acting debut as a leading role in the television drama, "Catcher", which was directed by Huang Chun-hua. In the same year, she made a cameo appearance in the television drama, "Six Friends", which was directed by Ma Kung-wei. Her next television dramas, "Come to My Place", directed by Doze Niu, and "In Love", directed by Ouyang Sheng and Chang Chih-chao, were released in 2002. Tsai followed it with a leading role in the television drama, "Hi Working Girl" (2003), which was directed by Huang Ko-i and Wu Ssu-ta, with Taiwanese actor Show Lo. She received mixed reviews for her leading role in the television drama. In 2005, Tsai played the leading role in the television drama, "We Are the Champions", which was directed by Kao Tien-lung. To further promote her studio album in 2007, Tsai played the title role in the film, "Agent J", which was directed by Jeff Chang, Kuang Sheng, and Lai Wei-kang. She was received positively for her leading role in the film. In 2014, Tsai featured as a judge on the Chinese singing reality competition television series, "Rising Star". In 2016, Tsai joined the voice cast of Disney animated film, "Zootopia", which was directed by Byron Howard and Rich Moore. She voiced a European rabbit named Judy Hopps who is a newly appointed member of the Zootopia Police Department in the film's Taiwanese version. In 2019, Tsai featured as a coach on the Chinese boy group survival reality television series, "Idol Producer" (season 2).

Question: Who directed the 55th Disney animated film with Jolin Tsai as part of the voice cast?
Answer: Byron Howard and Rich Moore