Seriously? You've never heard of either of those two bands?
I can kind of understand never having heard of Chicago, who were much more popular in the States than the rest of the world, but Foreigner? I'd hardly describe them as the best band of all time but they sold a serious amount of records during the 1970s/80s and were responsible for some very well known songs. I've seen them live and they were actually really good, I enjoyed them a lot more than I was expecting.
https://en.wikipedia.org/wiki/Foreigner_(band)