New York City Mayor Zohran Mamdani previewed his effort to implement free buses in the Big Apple in a video collaboration with YouTuber Ms. Rachel.

In the video posted Sunday, Ms. Rachel, whose legal name is Rachel Griffin Accurso, is seen singing, “the mayor on the bus says hello friends,” when Mamdani jumps into frame and joins in. When Ms. Rachel goes to the second verse of “the money on the bus goes clink, clink, clink,” Mamdani interrupts to remind her that the buses will be free.