"Heigh ho (Remix)" was a song AJR played on tour in 2017. The song is not known to have ever been released. The song also contains seems to contain spokstep.
A recording of the song can be found here: https://www.youtube.com/watch?v=mEVx-hmPpi0&list=PL3b-FK09iBPKtyI2JqC_l8Rfnx3QQknGp&index=8