AceShowbiz -

There are multiple other famous names on Rihanna's "FourFiveSeconds" in addition to Kanye West and Paul McCartney. According to a new report by Billboard, Yeezy himself hired '90s pop group Wilson Phillips to sing the backup vocals on the hit song.

"[Kanye West] said, 'When I think of authenticity and I think of angelic, I think of you,' " the group's Carnie Wilson recalled being praised by Kanye. She also revealed to the site what it was like to hit the studio with Kanye.

"He was really shy and he would just smile and he's real soft-spoken, then all of a sudden when he started playing all these songs, he was dancing around the room," she continued. "It was just like how Michael Jackson used to be. When he would press play, it was like, out came the artist and the creativity was just really there."

Billboard said 'Ye told Wilson Phillips to take the track home to work on their vocal. He gave them no particular direction. "We didn't know if we were singing on a section of the song - originally it was supposed to be just the bridge. He gave us sole freedom to just do what we do. We just went in there and let loose," Carnie added.

"FourFiveSeconds" was released earlier this year as the first offering from RiRi's upcoming eighth studio album, which she's been referring to as "R8". The song has so far peaked at No. 4 on Billboard Hot 100.