Reba McEntire sits down with ET's Rachel Smith to chat about hosting the 59th Academy of Country Music Awards, streaming live on May 16 on Prime Video. The singer spills on reuniting with 'Reba' co-star Melissa Peterman for their upcoming NBC sitcom pilot. Plus, ahead of her 17th time hosting the ACM's, Reba looks back on all of the iconic moments from her previous hosting gigs.