Selena Gomez Brings Date to 'Vanity Fair'...

Selena Gomez really wowed during Oscars weekend, with not one, but two separate ultra-glam appearances, including stepping out at Sunday night's Vanity Fair Oscars party. So, who was Selena's date for the big event? It wasn't boyfriend Justin Bieber, but it was someone super special in her life: Selena brought her mother, Mandy Teefey, to the bash. How sweet is that?

Selena's Oscars party gown was certainly worthy of a red carpet appearance. It's too bad she and Justin didn't get to walk that long, formal Academy Awards red carpet together this year! Selena chose to dazzle in a full-length, figure-hugging white gown that really accentuated her curves without being too over-the-top. Her hair was swept into a partial updo, unlike the loose, flowing waves she wore during Friday night's Women in Film Pre-Oscar Cocktail party. Both looks suited her perfectly.

Despite not having Justin Bieber around, Selena Gomez did manage to mingle with young Hollywood A-listers at the Oscars party, including Lily Collins. Selena tweeted a photo from the bash, saying, "Yep. Classy gals chillen at the Vanity Fair Oscar party." Both young women look beautiful in the accompanying photo -- even though Selena looks like she's stuffing her face!