"We are going to give you everything we got. I think it's going to be one of the most historic tours ever. Because I don't know that there has ever been something where these Latinos have come together like this as family," thesun.co.uk quoted her as saying.
Both the singers will be joined by Puerto Rican musicians Wisin Y Yandel, who will open for them.
Iglesias, who's been dating Anna Kournikova since 2001, said the tour will include collaborative performances as well as their own material.
"I have a bunch of songs with Wisin Y Yandel and obviously with Jennifer," he added.
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