
Perry's I Kissed A Girl was number one in the UK for five weeks while the track - the 1,000th number one of the rock era in the US - held the top spot on the Billboard Hot 100 for seven weeks.
And with Gym Class Heroes' single Cookie Jar likely to dent the UK top ten this week, a collaboration between Perry and her boyfriend McCoy would seem a sensible decision.
But according to drummer Matt McGinley, the One of the Boys singer won't be joining the ranks of Gym Class Heroes collaborators - which includes Estelle, Kelly Rowland, Busta Rhymes and Fall Out Boy's Patrick Stump.
"More than it's my decision, I know it's something that Travis has said will never, ever happen!" he told inthenews.co.uk.
"It's not even a plausible option, he just won't do it."
Gym Class Heroes' new album The Quilt, featuring hit single Cookie Jar, is out now.
By InTheNews.co.uk