Honest Hugh! For his appearance on The Late Show with David Letterman Wednesday, Feb. 20, Hugh Jackman stopped by dressed up as his "rival" Abraham Lincoln. Nominated for a Best Actor Academy Award for his portrayal as Jean Valjean in Les Miserables at Sunday's Oscars, Jackman is going up against Lincoln star (and the frontrunner) Daniel Day-Lewis.

PHOTOS: Hugh Jackman's hunky beach bod

"I wanted to sway a few last-minute Oscar voters," he explained to David Letterman of his costume. "I'll be honest."

"I mean really, can Daniel Day-Lewis do this?" the Australian actor, 44, asked before singing the Gettysburg Address. "Four score and seven years ago," he belted out in his deep voice.

PHOTOS: Hot celeb Aussies

"Can he do that? I don't know why I didn't get cast," Jackman said. "Really, I have no idea."

Jackman is also up against Silver Linings Playbook's Bradley Cooper, The Master's Joaquin Phoenix and Flight's Denzel Washington in the Best Actor category. Day-Lewis, however, has already won SAG, Golden Globe and BAFTA awards for his role portraying President Abraham Lincoln.

PHOTOS: Oscar 2013 best picture nominees

Watch Jackman take on Day-Lewis in the video clip above and tell Us: Who do you want to win the Oscar for Best Actor?

This article originally appeared on Usmagazine.com: Hugh Jackman Dresses Up As Lincoln to "Sway" Oscar Voters