The This Is It concerts have broken several concert records:
The biggest audience ever to see an artist in one city, the most amount of people to attend a series of arena shows, the fastest ticket sales in history, and the most number of shows performed by an artist at a single concert venue, a record held earlier by Prince for the same venue.
So yeah, he's back all right.
And not just is he selling out stadiums, he's resurrecting a country's economy in the process -- not to mention his own.
No wonder they call him the King.