In case you haven't been keeping up with your reality singing competitions, 'Duets' is the newest show to impact your television. Unlike 'American Idol' and 'The Voice,' the show pairs contestants with a famous mentor who they perform live with on the broadcasts.

Superstar singers Kelly Clarkson, Robin Thicke, Jennifer Nettles (of Sugarland) and John Legend have taken on the task of mentoring these contestants/duet partners. So which of these stars are you rooting for the most?

Kelly Clarkson has already won a singing competition herself (remember she was crowned the first-ever 'American Idol'), so she's already got that edge over the other mentors. Her strong vocals and bubbly yet commanding personality make her an easy person to share the stage with, as well. On the other hand, there's Robin Thicke, whose smooth R&B vocals and suave personality make him a great duets partner and an entertaining mentor.

There's also Jennifer Nettles, the frontwoman of Sugarland, whose country-twinged vocals and larger-than-life personality will help contestants on their way to becoming the 'Duets' winner. And finally, there's crooner John Legend, who seems to be a very grounded person with a strong mind -- two characteristics that will undoubtedly help his 'Duets' partners.

All of these singers have their own vocal styles and differing personalities, so it's a tough decision. But we still want to know: which 'Duets' mentor is your favorite? Vote for Kelly, Robin, Jennifer or John below!