Who cheated?

Country music couple, Blake Shelton and Miranda Lambert have split after four years of marriage but here's the real reason behind their divorce.

Latest reports state that Blake was the one who filed for divorce and his reason has 'cheating' written all over it. According to TMZ, Blake believed his wife was unfaithful in their marriage; not only once but twice.

Sources tell the site Blake has suspected Miranda was cheating for months. Blake also heard rumors Miranda had hooked up with a young country singer Chris Young and thought it was believable enough to make him suspicious of her.

Young opened for Miranda a few years ago, and both were seen publicly from time to time. But it's not confirmed if Chris was the catalyst for the divorce. However, it was another guy, who is not a country singer.

Sources say the real reason Blake filed for a divorce two weeks ago was because he received certain information about Miranda and the other guy that elevated things in Blake's head from rumor to fact.

Although the couple released a statement saying the divorce is amicable, there are reports that Blake has been very upset in the last few weeks and told her she had to get her animals off his Oklahoma ranch by Monday, July 20.