The American rockers - whose track 'Killing In The Name' was last year's UK Christmas number one thanks to an internet campaign to keep 'X Factor' winner Joe McElderry off the top spot - will invite the 'Wild Horses' hitmaker to sing with them when they take to the stage in London's Finsbury Park at their "victory" concert later this year.
They see teaming up with Susan as a way of showing Simon Cowell - who has both Joe and Susan signed to his record label SyCo - that there are no hard feelings between them.
Frontman Zack De La Rocha told The Sun newspaper: "Simon seemed to think it was a bullying campaign but the truth is the British people wanted a change. I don't think anybody has heard anything of that Joe guy since Christmas, but we have nothing against him. The truth is Simon's shows occasionally produce talent.
"We love Susan Boyle, she is hot. To show there are no hard feelings we would like her to perform with us on stage this summer. She is a great vocalist and we would love to perform 'Killing In The Name' with her. Everybody knows her in the US and she can add vocals to anything. It would be an honour for us."
The group are playing at Finsbury Park on June 6 to says thanks to their British fans for making them number one after four years of 'X Factor' winners taking the coveted Christmas top spot.