YAM YAM formed in late 2015, coming together from playing in an assortment of local bands in central PA. The band is inspired by 1970s soul music, New Orleans roots of jazz music, and modern/vintage funk and jam music. YAM YAM features raw instruments and captures a high-energetic sound. YAM YAM is Mike Dempsey on keys, Jason Mescia on saxophone, Xander Moppin on bass, Tom Fuller on guitar, and Tyler Fuller on drums.

The band released its debut, self-titled album in late 2018 and upon its release, it charted on Billboard Jazz Albums section at No. 17. The band has opened for Lotus, Dopapod, and Keller Williams among others and has been featured in NepaScene, LiveForLiveMusic, TheBurg, and Burg in Focus.