On September 4, 2012, at 2PM, after playing a half-hour of "goodbye"-themed songs (ending with *Nsync's "Bye Bye Bye: and R.E.M.'s "It's The End of the World As We Know It)," WCHY flipped to a hot adult contemporary format as "Mix 105.1," launching with Carly Rae Jepsen's "Call Me Maybe.