TMZ broke the story ... Joe and Sophie's marriage had been on the rocks for at least 6 months, and it was all over a significant difference in lifestyles. As one source put it, "She likes to party, he likes to stay at home. They have very different lifestyles."
As we reported, over the last 3 months, Joe has had the kids almost all the time. Sophie has been in London, but Joe and his bros were touring the U.S. and he had his 2 small kids in tow.
We know Joe had been in touch with at least 2 divorce lawyers last week. Interestingly, both lawyers are in L.A., yet he decided to file divorce docs Tuesday in Florida.