From the looks of the Vanity Fair Oscar party on Feb. 27, Selena Gomez is Justin Bieber's "Favorite Girl."

The teen sensation and Kmart clothing designer broke a million hearts as she walked the red carpet on the arm of her pop-star boyfriend. She was a petite darling in a saucy red Dolce & Gabbana dress -- coincidently, Bieber donned a D&G suit with matching red pocket square -- which she paired with Lorraine Schwartz jewelry, Brian Atwood shoes and a Judith Leiber clutch.

Gomez's fiery frock was on trend for the evening: Jennifer Hudson, Jennifer Lawrence and co-host Anne Hathaway all wore crimson-hued gowns.

Meanwhile, check out our list of best- and worst-dressed at the 2011 Oscars.