Finale to the Chicago/ Doobie Brothers concert.
Pretty much the whole show was shot by this person, so enjoy.
http://www.youtube.com/watch?v=0vvI0F_ZOUA
Rockin' Down the Highway
http://www.youtube.com/watch?v=M9dgP3X9D4g
Taken it to the Street
http://www.youtube.com/watch?v=K66JmQmIk4c
25 or 6 to 4
And just for fun - Saturday in the Park
http://www.youtube.com/watch?v=rdQLARYIGKI
China Grove
http://www.youtube.com/watch?v=kJUtf1H59UQ