"Happy Birthday, @austinswift7! I made an annoying meme to celebrate this momentous occasion!" she tweeted along with the awesomely, annoying pic. Peep it below.
Totally poking fun of her song "22," Tay brilliantly added the tune's lyrics to his baby pic. Hey, it's better than a diss song, right?
Taylor and her bro are actually pretty good friends. He's usually her date to award shows and they hang out a lot together. Check out pictures of their fun times together in the gallery below and see our favorite T-Swift dancing GIFs here.
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Gallery | The Swift Siblings' Sweetest Moments