Country singer Blake Shelton is making things uncomfortable on the set of NBC's "The Voice" after splitting from “Little Red Wagon” singer Miranda Lambert. The former couple divorced last week after four years of marriage, and now the coach has banned crew on the singing competiton show from speaking her name, Radar Online wrote in an exclusive report Monday.

Even though Shelton, 39, and Lambert, 31, just broke up, banning her name isn’t anything new. In fact, it started last season. “When Blake is filming, Miranda has never been a topic to begin with,” a source told Radar Online. “He always acted like he was single and would constantly flirt with not only the girls in production, but also with some of the girls that he mentored.”

Now people on the set of the hit reality show feel uneasy. “It is extremely tense on the set because you can see how pi---- off and upset he is, but he is trying to pretend like everything is just peachy.” But Shelton's cavalier attitude isn’t fooling anyone. “It’s like it is the pink elephant in every room that he is in,” the unidentified person added.

Since their split, rumors claimed Lambert was pregnant with her ex-husband’s baby. They responded by poking fun at each other. The “Over You” singer took to Twitter and shared a picture of her ex pushing a baby in a stroller. And it seems like both parties have kept their sense of humor.

“I knew it.... You WERE pregnant! This calls for a drink!” Lambert tweeted Friday. “Ha!!!!! Busted... I wasn't JUST a fat a--. Drinking shall now begin...” the NBC star responded.

In their joint statement, the celebrity duo said a divorce is not what they “envisioned.” They reminded fans they were “real people” and asked for everyone to respect their privacy.

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