Niall Horan and Vladimir Klitchko are also set to take part in the event.
Tommy Fleetwood, Tyrell Hatton and Xander Schauffele are the latest to commit to playing The JP McManus Pro Am event at Adare manor in 2020.
Offaly's Shane Lowry is amongst those who previously announced their participation along wide Tiger Woods, Dustin Johnson and Phil Mickleson.
Some of the Amatuers set to tee it up include Vladimir Klitchko, Mark Wahlberg and Mullingar man Niall Horan.
The event will take place the weekend of the 6th of July at the Limerick course which is set to host the Ryder Cup in 2026.