Currently available for fans to hear on the internet, Pink sings on a track called Won’t Back Down.
Speaking to Radio 1’s Fearne Cotton, Eminem said: “I’ve always respected what she does.
“When we did the track I heard her on it and knew vocally she’d smash it.”
Rihanna also appears on the album which is due for release on 22 June. She features on a track called Love The Way You Lie.
“The same thing with Rihanna [as Pink],” he said. “It would be more special with her on it.”