VIDEO: Amanda Seyfried's Talented Dog Wows LETTERMAN

While promoting her upcoming film 'Lovelace' on last night's LATE SHOW on CBS, actress Amanda Seyfried boasted to David Letterman that her dog, 'Finn' could balance anything on his head. Always the skeptic, the host called her bluff and challenged the pooch to balance a hamburger on his head. Check out the clip below!

'Lovelace' stars Seyfried ("Les Miserables", "Mamma Mia!") as American porn star Linda Lovelace. The cast also includes Hank Azaria, Bobby Cannavale, Chris Noth, Robert Patrick, Wes Bentley, Sharon Stone, Juno Temple and Peter Sarsgaard.

From the birth of the sexual revolution to the height of the feminist movement, LOVELACE depicts the life of Linda Boreman who as 'Linda Lovelace' became the first erotic superstar.

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