When you think of Kelly Rowland, you think of Destiny's Child, and her edgy solo career. When you think of Michael Bolton you think of the mom-adored love song crooner. But have you ever thought these two very different artists would be collaborating on a Motown cover song? Neither did we, which makes their unexpected cover of "Ain't No Mountain High Enough" that much more thrilling!

The Marvin Gaye/Tammi Terrell cover was made for Bolton's upcoming album of Motown-themed covers entitled Ain't No Mountain High Enough: Tribute Hitsville. Both the talented singers' voices are showcased well on this track as they harmonize together and lend their new-school charm to this old-school song. Hear it below:

What do you think of the cover song? Do they do it justice? Tell us in the comments!