Taylor Swift and Calvin Harris have celebrated their first anniversary as a couple this past weekend, with Taylor taking to social media to share a picture of the superstar DJ’s gift to her to mark the special milestone.

On Sunday night (March 6th), Swift posted a snap on Instagram of an engraved heart-shaped locket which read ‘3.6.2015’. Captioning her photo with the same date, the 26 year old singer added “One year down!”

3.6.15 One year down! ??

A photo posted by Taylor Swift (@taylorswift) on

In addition, 32 year old Harris also Snapchatted a video showing the couple celebrating with a cake decorating with hearts, with ‘1 Year’ written in icing. They were also seen sharing a romantic dinner at Cut in Beverly Hills the previous week.

Things appear to be going very well for the couple, with a source close to the pair telling E! News on Monday that Harris sees a permanent future for the two of them.

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“Calvin knows that Taylor is the woman for him… out of all of Calvin’s relationships, he seems the happiest with Taylor. He always says to all of his friends that Taylor is marriage material.”

Taylor Swift Calvin HarrisTaylor Swift and Calvin Harris in New York in 2015

Way back in April last year, Us Weekly confirmed that the pop power couple had started dating, having hit it off at the 2015 Brit Awards two months previously. Having texted for a couple of weeks, Swift apparently flew to Las Vegas to watch the Scottish DJ perform on March 7th.

Despite their extremely busy schedules, what with being two of the highest-earning pop stars in the world over the last 18 months, Harris and Swift made time for each other along the way, with him being spotted with her at various stops on last year’s lengthy 1989 World Tour.

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