Walls Leaving WKDF: Cumulus WKDF/Nashville middayer Becca Walls will step down May 11 after 16 years with the station. Walls revealed her decision on Facebook, adding she'll continue her freelance work as Envision's Nashville Correspondent for AmeriCountry, which she's done for five years (CAT 6/21/11), and for WIL/St. Louis' Bud and Broadway. Reach her here. The news clarifies the opening in the Gig Alert earlier this week (CAT 5/2).