Isla Fisher explains the strange way she smuggled illegal items into the Oscars.

We’ve all done stupid things for love.

Lord knows, the laser tattoo-removal industry probably wouldn’t exist otherwise. But smuggling a forbidden costume inside your undies? You’re on your own with that one Isla Fisher.

Yes, that surprise appearance by Ali G at this year’s Oscars wouldn’t have happened without Isla’s Spanx.

The Aussie actress sat down with Jimmy Kimmel to reveal how she and her chameleonic husband managed to sneak the outfit in – hat, sunnies, beard and all.

Sasha had been on probation at the Academy Awards since he infamously tipped Kim Jong Il‘s “ashes” over Ryan Seacrest in 2012 as part of a surprise stunt to promote his film, The Dictator.

He was thus given strict instructions by the show’s organisers not to play dress-up this time around – just come as yourself, no funny business.

Ha! It’s kind of cute that they thought he’d listen.

With the actor’s neatly tailored suit allowing no room for the contraband, it was left to wife Isla to find space in her nickers. “You’re used to taking hair off down there to go to events, instead of adding considerable amount of beard,” she mused to Kimmel. “And then I had to fit the yellow glasses.”

Say no more Isla. Wife of the Year, fullstop.

Watch Isla tell the full story on Jimmy Kimmel Live below: