Michael Jackson has made his long-awaited comeback with a new song, This Is It, released four months after his death.

The track began streaming overnight on the King of Pop’s official website before being delivered, amidst tight security, to radio stations this morning.

A mid-paced ballad, the sentimental number has received a mixed reaction, delighting some fãs still grieving the star’s sudden death but disappointing others who complained about the “cheesy” lyrics and lack of catchy hooks.

One fã commenting on the pop star’s website, wrote: “This single is great, to be honest...