Reba is back. Reba McEntire will return as the host of the upcoming 53rd ACM Awards on April 15 in Las Vegas. The gig will mark Reba’s 15th time as the emcee, her first since 2012 when she teamed with Blake Shelton. JUST ANNOUNCED: @Reba McEntire will host this year’s 53rd annual @ACMawards on April…