• Miranda Lambert

Miranda Lambert (Photo : Instagram )

Miranda Lambert is writing a diss song about Blake Shelton. The singer was allegedly trying to get back at her estranged husband by writing a song about their failed relationship.

According to Entertainment Tonight, Lambert has posted several teasers on her social media page of her upcoming single with the hashtag #MusicIsMedicine. It has been rumored that the new song will finally give fans a glimpse of what really caused the split.

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Lambert and Shelton confirmed the divorce rumors by releasing a joint statement in July. After four years of marriage, the couple decided to go their separate ways. They also asked fans to respect their privacy, adding that they would like to keep the reason for the divorce to themselves.

According to Star, via Youth Health Magazine, Lambert only used Shelton to "advance her career." Insiders added that it was actually Shelton who filed for a divorce after he caught his wife cheating multiple times.

The publication claimed that Lambert cheated on Shelton with several men, including Josh Beckett. Even while she was married to Shelton, she would allegedly sneak out to meet the former pitcher for the Los Angeles Dodgers. Their affair reportedly lasted for several years.

The source said that the only reason why Lambert stayed with Shelton was because her manager thought it would be good for her career. It was said that she no longer loved her husband but decided to stay in the relationship for the free publicity. The insider added that Lambert was willing to do anything to keep her fame.