Complex sentence: In August, the band appeared at the Trois-Rivieres en Blues Fest in Quebec, Canada and in October, Shelley joined Warren Haynes and Gov't Mule on stage during their Miami concert encore.
Split into simpler sentences: In August, the band appeared at the Trois-Rivieres en Blues Fest in Quebec, Canada. In October, Shelley joined Warren Haynes and Gov't Mule on stage during their Miami concert encore.