5-14-15: Family band Echosmith is slated to join twenty one pilots for a joint tour beginning in September. The duo will tour North America through the end of October, playing 22 dates along the way. Over the joint run, the average price for Echosmith tickets is $101.15 on the secondary market. The band will make its most expensive stop on October 15 at the Greek Theatre in Los Angeles. The average secondary price for that show is currently $188.75 and the get-in price starts at $65.