Courtesy Jimmy Fallon
January 24, 2014 01:45 PM

If a picture is worth a thousand words, a Vine is six times that.

Since its launch last year, Vine has become the most popular video-sharing app. More than 40 million people – including a fair share of high-profile stars – have posted their own six-second clips. Famous faces use Vine to connect with fans, offering a behind-the-scenes glimpse of their worlds. As we celebrate Vine’s first birthday today, PEOPLE decided to look back at our favorite A-list contributors. From Taylor Swift‘s vacation video to Jimmy Fallon‘s makeup routine, here are the freshest picks from Vine.

Don’t forget to follow PEOPLE on Vine!

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