MIchael Jackson is my favorite artist of all time. Him, Elvis, and Freddie Mercury are the holy trinity of male vocalists in my opinion ( Sinatra clocks in at #4).
In more recent category, there's this kid name Charlie Puth. His new album Voicenotes has 4 songs that I listen to all the time - How Long, Attention, Slow It Down, and Someone Told Me. They were recorded really well too so they make a great test for more modern digital gear.