Playing into his Dude, Where's My Car? persona, when fact-checked for the spelling of his step-daughter Tallulah's name, Ashton Kutcher reportedly drew a blank.
Ashton was Punk'd during an interview about an ABC game show he has in development called Opportunity Knocks.
Tallulah must be thrilled her stepdaddy can't even spell her name!
We guess we shouldn't forget that Ashton - who's married to Demi Moore and 15 years her junior - was a male model before he became an actor.
P.S. He probably doesn't know how to spell Potato Head either!
[Image via WENN.]