After doing an Aretha Franklin song last week, John Legend challenged Bridget Carrington to take on another Motown legend: the great Gladys Knight.

As John and Bridget rehearsed Gladys' version of 'I Heard It Through the Grapevine,' John said he doesn't give a lot a notes to his partners -- he just expects them to go out and do a great job. Which might mean he's a little overpaid here. Dude, aren't you supposed to be helping them get better?

But as it turned out, Bridget did just fine on her own. John served as a one-man Pip, and really, she didn't need him there at all. It looks like she's been singing a long time and graced more than a few stages, because confidence is not something she lacks. And unlike some of her fellow competitors, she doesn't need to rely on her pro partner to prop up her voice, either.

Robin Thicke talked more about how much he loves Marvin Gaye's songbook than he did about Bridget's actual performance, but he did remember to throw in a comment about how she did a great job. Jennifer Nettles said Bridget's lower register sounded a little muddy but her higher register was good, and Kelly Clarkson proclaimed the performance "awesome."

Watch John Legend + Bridget Carrington Perform 'I Heard It Through the Grapevine'