Congrats to Jason Aldean and Carrie Underwood as their number-hit “If I Didn’t Love You” is now the ACM Award winner for Single Of The Year. Congratulations to this year’s winner of ACM Single of the Year, “If I Didn’t Love You” by @carrieunderwood and @Jason_Aldean 🎉 #ACMawards pic.twitter.com/tUSppIRPcs — ACM Awards (@ACMawards) March 8,…