The Zebulon Sisters were entertainers in the late 24th century. They were famous for their performance of the Chu Chu dance.
Their performance at Deep Space 3 was seen by Beckett Mariner.
In 2380, they performed aboard the USS Cerritos, where they were seen by members of the beta and delta shifts. The Zebulon Sisters added a third "Chu" to the Chu Chu dance during this performance, resulting in the Chu Chu Chu dance, which Ensign Mariner described as "genius". According to Ensign Brad Boimler, he made eye contact with one of the Zebulon Sisters while he was in the audience, at which point he (temporarily) forgot how to breathe. (LD: "Terminal Provocations")
The Zebulon Sisters were performing on Qualor II in 2381. (LD: "We'll Always Have Tom Paris")
Later that year, the Zebulon Sisters were banned from performing on active duty starships by Admiral Edward Jellico. (LD: "Grounded")