For its 20th season, which premiered on March 16 and ended on May 19 in 2015, the television reality competition "Dancing with the Stars" featured a panel of four judges: Len Goodman, Carrie Ann Inaba, Bruno Tonioli and Julianne Hough. The show's cast includes celebrities who are paired with professional dancers and compete against each other in a variety of dance styles.
Goodman, a British dance instructor, is the head judge of "Dancing with the Stars." He has also been the head judge of "Strictly Come Dancing," the British show that inspired "Dancing with the Stars." Goodman, as well as Inaba and Tonioli, both of whom are choreographers and former dancers, have been judges on the show since the first season. Hough, an actress and singer who was one of the show's professional dancers for several seasons, rejoined the cast as a judge in the 19th season.