The 45-year-old actor confessed his co-star was ''very taken'' to Robin Thicke's video where an unrated version shows models Emily Ratajkowski, Elle Evans and Jessi M'Bengue dancing in skin-colored G-strings.
Jackman told The Sun newspaper: ''Michael was particularly enamoured with the video to 'Blurred Lines'.
''Which version? I think we all know what one ... he was very taken.''
Jackman reprises his role as Wolverine, while Fassbender plays Magneto, and in character they would ''strut about'' re-enacting the original footage.
He added: ''We'd strut about. I used to play the song in between takes on the 'X-Men' set. It was a lot of fun. Everyone would just go into character and we'd be strutting around. It was identical to the video but we'd be mutants.''
James McAvoy joined in on the fun too, and Jackman was particularly impressed with their vocal range.
He continued: ''I didn't need to take the high bits. You'd be surprised what talented singers Michael and James are. They could get up there.''
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