Simon O’Connor will not join Modest Mouse on its upcoming tour after allegations surfaced that the guitarist sent inappropriate Instagram messages to an underage fan. Its brief statement did not say whether O’Connor had permanently left Modest Mouse or explain the decision in greater detail. A Teen Fan Shared Screenshots of the Instagram Exchange“Simon O’Connor will not be joining us on the upcoming tour,” Modest Mouse said in an official Instagram statement. The Tour Will Continue With Seth JabourModest Mouse has not announced any canceled performances connected to the lineup change. Modest Mouse is scheduled to perform at San Francisco’s Castro Theatre before appearing at the Outside Lands festival on August 7.