But there's still more to it... Barbra Jean also pushes herself into Reba's life, as she desperately tries to fit in with the Hart family and become Reba's best friend, clueless as to why Reba ...

On Monday, Melissa Peterman -- who co-starred with McEntire on her eponymous sitcom, Reba, as Barbara Jean Hart -- confirmed she'll be joining the country star for her newest TV project.