
Photo: Shiran Nicholson
MasterCard

The credit card company enticed cardholders to tweet about the iHeartRadio Music Festival via an interactive vending machine that provided them with a unique hashtag and prize once they posted a message about the event. Prizes included $10 prepaid MasterCards and free music downloads.
Photo: Roger Kisby for iHeartRadio
Jim Beam

Guests who received branded airbrush tattoos at the Jim Beam station served as walking advertisements for the brand as they roamed the iHeartRadio Village.
Photo: Chase Stevens for iHeartRadio
Mercedes-Benz USA Official Oscars Viewing Party

Guests could vote for which film would win Best Picture; people who chose correctly were entered to win prizes from Mercedes-Benz.
Photo: Scott Clark Photo
'Vanity Fair' and Lancôme's Women in Hollywood Reception

Part of Vanity Fair's annual Campaign Hollywood series of Oscar week events, the publication teamed up with Lancôme, director Ava DuVernay, and musician and actress Zendaya for a private cocktail reception honoring women in Hollywood. Held at Soho House West Hollywood on Thursday, the stylish reception had a step-and-repeat made from past Vanity Fair covers and other portraits of prominent women in the industry.
Photo: Michael Kovac/Getty Images for Vanity Fair