Only a few times in their history has Pearl Jam came out and rocked out to two covers to start a show. Here I'm not counting the VH1 Rock Honors : The Who in 2008.
You'll inherently get a different kind of show when going to a Festival, same as with a unique Benefit show, the band typically catering to those masses with heavy Ten shows, unique sets or well known covers. Sometimes they come in playing a cover song and leave you with the same. Below is a list of shows that have been bookended with a cover at both ends.