Last night, the String Cheese Incident and RatDogs now regular collaborations focused on percussion. During its performance at Canandaigua, NYs Finger Lakes Performing Arts Center, RatDog invited out String Cheese Incidents percussion team of Michael Travis and Jason Hann for a number of songs, including Scarlet Begonias, Come Together, St. Stephen, Touch of Grey and, of course, Drums. During String Cheese Incidents set, RatDog guitarist Mark Karan also appeared on Look at Where We Are and Outside and Inside. RatDog and String Cheese Incident will perform in Philadelphia tonight. While tonights show was originally scheduled to take place at Penns Landing, due to the threat of rain, the evenings festivities have been moved inside to the Electric Factory.