Pop star Michael Jackson, who has already gone under the knife several times, is reportedly planning for more plastic surgery.

In a bid to revamp his image ahead of his eagerly anticipated comeback shows, he is said to be discussing more cosmetic surgeries with medics.

The Thriller hitmaker is making a return to the stage in July to start his 50-date residency at London's O2 Arena.

And, according to biographer Ian Halperin, the Thriller hitmaker, who has had various cosmetic surgery procedures in the past, wants to go under the knife once again.

"Michael has consulted some of the world's best cosmetologists and surgeons in preparation for this comeback," Contactmusic quoted Halperin as saying.