The Slip bassist Marc Friedman will play with the Ryan Montbleau Band at this weekend’s Jungle Jam Festival in Costa Rica. The rest of the group will be rounded out by James Cohen (drums), Jason Cohen (keys), Yahuba (percussion) and Jeff Lockhart (guitar).

In related news, American Babies recently announced that Friedman would be joining the band as its permanent bassist.

Jungle Jam—which kicks off tomorrow—will feature performances by Slightly Stoopid, G. Love, Karl Denson’s Tiny Universe, Dumpstaphunk, Max Creek, Ojo de Buey, Oteil Burbridge, The Expendables, Nicki Bluhm and The Gramblers, Don Carlos, Zach Deputy, Ryan Montbleau Band and many more.