California Jam ( also known as Cal Jam ) was a rock music festival Social_event co-headlined by Deep Purple and Emerson , Lake & Palmer , held Hold at the Ontario Motor Speedway in Ontario , California , on April 6 , 1974 .

the twins of evil tour Traveling was the first double bill concert tour co-headlined by american rock bands rob zombie and marilyn manson .

For the 2014–2015 tour Traveling , the Steve Miller Band co-headlined Cause_to_amalgamate .