<Li> Yeah! Tour (2006) </Li> <Li> Downstage Thrust Tour (2007) </Li> <P> The Yeah! Tour was a concert tour by Def Leppard, supporting their album Yeah! . The North American tour was co-headlined by Journey and supported by Stoll Vaughan . Of Journey, singer Joe Elliott remarked, "Isn't that a great combination? It's a marked contrast with the 1990s, in what some people might call our wilderness years...We held our own and pulled good crowds, but nobody would come out with us ." </P> <P> (From 23 June, Camden, New Jersey show) </P>

Who did def leppard tour with in 2006
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