Brad Pitt & His Boys ‘Rock’ Las Vegas

With only days to go before Brad Pitt’s big night at the Oscars, the proud papa and his boys enjoyed some down time in Las Vegas.

Brad and the boys – except for 7-month old Knox – were spotted at the Hard Rock Hotel & Casino Wednesday, People reported.

Brad took sons Maddox and Pax to see KA by Cirque du Soleil at the MGM Grand Hotel & Casino.

The group of guys, who was accompanied by a family friend, enjoyed KA’s 2000th show. The boys ate popcorn while Brad enjoyed a beer.

At the end of the show, Brad – holding a sleeping Pax in his arms – slipped out of the show with the rest of his group unnoticed by the fellow patrons.

While the men of the Pitt-Jolie family enjoyed Vegas, the ladies of the family were spotted shopping in NYC at Lee’s Art Shop.

On Tuesday, Angelina started pre-production work on her upcoming spy thriller, “Salt.” The actress viewed costumes and locations to be used in the upcoming movie, the mag reported.

Brad and Angelina will reunite Sunday at the 81st Annual Academy Awards, where Brad is up for Best Actor for “The Curious Case of Benjamin Button,” and Angelina is nominated for Best Actress for “Changeling.”