The 34-year-old Mean Girls star and singer tweeted the 30-year-old folklore singer-songwriter late on Saturday night.
''@taylorswift13,'' she simply tweeted, adding no message to the ''cardigan'' superstar. Fans immediately began wondering what she intended with her tweeted to Taylor, although she has not yet clarified further.
Taylor's got plenty to celebrate at the moment: her latest studio album has reigned at No. 1 for weeks on the Billboard 200, and now she's tied for the most weeks at No. 1 for a woman in history!
Lindsay also recently announced the launch of a new company.
Check out the tweet.