07/12/2011 12:11 pm ET | Updated Sep 11, 2011

'Harry Potter' Stars Talk American, Sing 'Party In The U.S.A' (VIDEO)

We're all used to seeing the stars of 'Harry Potter' dazzle us on screen using their proper British accents, but what happens when actors Rupert Grint, Tom Felton and Matthew Lewis are put to the American accent test?

MTV did just that with 'American Talk 2', and hilarity ensures, because watching foreign actors try to speak with a U.S. accent is pretty funny.

From trying to read stereotypical American guy lines ("Hey bro, want to check out the football game in my bitchin' tricked out truck?") and getting quizzed on U.S. pop culture ("Jennifer Lopez?" Felton guessed when shown a picture of Kim Kardashian), it looks like these fellows need to spend some of their post-Hogwarts time stateside.

Finally, they break into what's become an unlikely American anthem: Miley Cyrus' 'Party in the U.S.A." Who knew landing down the catchy tune would prove so difficult?

Felton, Grint and Lewis joined the rest of their cast Monday night at the 'Harry Potter and the Deathly Hallows, Part 2' New York premiere to say farewell to the 'Potter' franchise.