Drew Barrymore passed on Oscar weekend in Los Angeles to celebrate her 34th birthday in Las Vegas with some of her celebrity gal pals!

The 'He's Just Not That Into You' actress was joined by "Saturday Night Live" comedian Kristen Wiig and 'Juno''s Ellen Page, who has the same birthday as Drew.

The party started at The Palazzo Casino where the group was seen singing and dancing to old-school music on Drew's boom box. The birthday girl stayed in a luxurious two bedroom penthouse suite that had a view of the Vegas strip.

The girls began their evening with dinner at the LAVO in The Palazzo and soon found their way into the restaurant's outdoor hookah patio. Mid-celebration, Drew and Ellen were surprised with dual birthday cakes -- Drew's cake was pink marble with daisies and fairy figurines on it, while Ellen had cupcake cones.

The birthday girls finished off the evening with champagne and dancing! Drew, Ellen and Kristen are all set to star in the comedy 'Whip It,' out in theaters October 30.