Blake Shelton threatens to sue magazine over affair allegations

American Singer Blake Shelton has threatened to sue In Touch Magazine for spreading the rumours of his affairs with Cady Groves, whom he believes to be the instigator.

The 'Lovely Tonight' singer's attorney has send a letter to the magazine, asking them to withdraw the story that says Groves was dating the Miranda Lambert's former husband, claiming that Groves planned it all, TMZ.com reported.

Denying any sort of sexual relationship with "infatuated" Groves, the letter further said that any insinuation of her having an affair with Blake was a lie.

On the other hand, In Touch Magazine seems to stand firm by its story claiming to have another "exclusive" about the Shelton-Lambert divorce.