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OTRC: Taylor Swift's Diet Coke ad vs. Beyonce's Pepsi commercial (Videos, poll)

Taylor Swift appears in a 2013 Diet Coke ad. / Beyonce appears a 2013 Pepsi commercial. (Coca Cola Company / PepsiCo)

Everybody's singing Taylor Swift's new song -- in her first Diet Coke ad.

The commercial, which debuted on TV on Thursday, April 11, shows different people, including a man driving a car, a restaurant cook and a group of partygoers rocking out to "22," which was released in March, while the singer is seen jotting down lyrics and strumming a red acoustic guitar. The tag line: "Stay Extraordinary."

Swift was named a brand ambassador for Diet Coke in January. The song "22" is the fourth and latest single from Swift's 2012 album, "Red."

As always, it's Coke vs. Pepsi ... and Beyonce.

Swift's Diet Pepsi ad was released about a week after Beyonce debuted her new Pepsi commercial, which features part of her new song "Grown Woman" as well as several images from her past -- images of herself.

Watch both videos below and tell us what you think by voting in our polls.

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