Following the death of Zappa's mother, Gail, in October 2015, it was revealed that his siblings Ahmet and Diva were given control of the Zappa Family Trust with shares of 30% each, while Dweezil and his sister Moon were given smaller shares of 20% each. As beneficiaries only, Moon and Dweezil will not see any money from the trust until it is profitable—in 2016, it was "millions of dollars in debt"—and must seek permission from Ahmet, the trustee, to make money off of their father's music or merchandise bearing his name. Zappa received a cease-and-desist letter from the trust after he announced that he was being forced to perform his upcoming tour as “Dweezil Zappa Plays Frank Zappa” instead of using “Zappa Plays Zappa.” In response to the trust’s action, he renamed his performance series “50 Years of Frank: Dweezil Zappa Plays Whatever the F@%k He Wants — the Cease and Desist Tour.”