During the 2002 leg Traveling , some changes Change were made Manufacturing ; several songs were remixed Cause_to_amalgamate , and Spears premiered Social_event various unreleased Publishing songs which included Cause_to_be_included `` Mystic Man '' .

The series premiered Getting on April 5 , 2007 on Spike TV in the United States and Canada at 10:00 p.m. ET/PT and concluded Process_end on June 23 .

Its fourth season premiered Process_start February 28 , 2017 .