Complex sentence: In January 2009, Kate & Kacey joined Little Big Town on tour as the group's opening act and hosted The Corona Sun City Tailgate Experience at several dates of Kenny Chesney's Sun City tour over the summer.
Split into simpler sentences: In January 2009, Kate & Kacey joined Little Big Town on tour as the group's opening act. They are hosting The Corona Sun City Tailgate Experience at several dates of Kenny Chesney's Sun City tour over the summer.