Miranda Lambert is ditching Blake Shelton for Shakira — on The Voice, that is. As revealed in the Dec. 2 issue of Us Weekly, the country songstress, 30, recently served as a mentor for the “Hips Don’t Lie” singer’s season six contestants, who will be competing against Shelton’s team members next spring. (Season five of the NBC show is airing now.)

“Shakira and Miranda got along well,” a source tells Us of the superstars. “Blake joked that Miranda was helping another coach. But it was in good fun.”

Indeed, despite Lambert’s “unfaithfulness” to Team Blake, the spouses of two years are still going strong. “We had our ups and downs for damn sure along the way. I just could not imagine her not being in my life,” the 37-year-old “Boys ‘Round Here” singer said in a recent interview with CBS This Morning. “I just couldn’t get over her. I know I can’t.”

For more on Lambert’s Voice gig, watch this week’s Hot Stuff video, as explained by Us Weekly entertainment director Ian Drew and singer Kay Kasparhauser of The Prettiots.

Other stories in the roundup: Teresa Giudice‘s trial prep; Ginnifer Goodwin and Josh Dallas‘ pregnancy joy; Gwyneth Paltrow‘s Spanish rule; and much more!