Closet Time! was a short lived running gag from The Lenny Lego Show that only lasted two episodes, one during season 4 and the other during season 5. The gag was a jingle that played anytime a character entered the main closet.
After the show was cancelled, it was announced that the show's reboot series, The Lenny Leggo Show would take place in an actual city, rather than in its original bedroom setting. As a result, "Closet Time!" was officially retired.