Taylor Swift wears a gold heart shaped locket necklace following her one year anniversary with boyfriend Calvin Harris. Credit: Karl Larsen/Coleman-Rayner

No more paper airplane! Taylor Swift was spotted wearing the heart-shaped gold locket that she received from boyfriend Calvin Harris during an afternoon outing in L.A. on Thursday, March 10.

The "Out of the Woods" singer, 26, teamed the new piece of jewelry with a low-cut black dress, a chain purse and her trademark red lipstick. (Swift often wore Harry Styles' airplane necklace when they briefly dated back in 2013.)

Swift received the necklace from Harris, 32, in honor of their one-year anniversary. Engraved on it is the day they began dating: March 6, 2015.

Swift, for her part, baked Harris a chocolate cake to celebrate the occasion. The Scottish DJ posted a Snapchat video of the tasty treat — with Swift looking on — on Sunday, March 6.

3.6.15 One year down! ❤️

A photo posted by Taylor Swift (@taylorswift) on

"1 year. . . that was easy," Harris wrote. Swift shared a photo of her necklace via Instagram, and added: "3.6.15 One year down!"

The lovebirds have stayed relatively quiet about their relationship over the past year, despite the occasional pool photo. Last month, however, Harris gave the singer a special shout-out after she won Album of the Year for 1989 at the Grammy Awards.

"Congratulations to my beautiful girlfriend," he captioned a photo of Swift kissing him at a Grammys afterparty. 

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