Nonetheless, whilst Z Rock & Pop sponsored a concert that was set by 19 January 2010 which was of Thrash Metal band Metallica, an upcoming Capuñay's brand-new radiostation was announced to go on-air by the end of December 2009 on 95.5 MHz. This occasionates that many listeners wonder what could happen with the concert if the sponsored station disappeared. But in the middle of December 2009, every DJ was gradually taking leave of their listeners because the broadcasting station was going to change its format. In consequence, in the night of 30 December 2009, the radiostation presenter Mariley Paredes presented the last song for the station which was "Por Qué No Se Van" ("Why Don't They Go") by Los Prisioneros ("The Prisoners"). Afterwards, exactly at 20:00, the brand-new station of Reggaeton-Salsa-Cumbia format called "La Kalle" went on-air. The off-the-air of Z Rock & Pop caused much anger and depression to many listeners or "fanatics" who loved good music and who wanted to enjoy the Rock & Pop music of all time.
