WATCH LIVE: Taylor's Swift Worldwide Livestream at 5 P.M. ET

The singer has a big announcement to make – don’t miss it!

— -- For days, Taylor Swift has been hinting that something big will happen on Aug. 18.

She wasn’t lying.

At 5 p.m. ET, the singer will end the suspense with a live streamed event on ABCNews.com, GoodMorningAmerica.com on Yahoo! and Yahoo.com.

This is something you don’t want to miss.

Taylor Swift Announces Worldwide Live Stream on Yahoo!

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In her last Instagram post, Swift, 24, showed a video of skywriting across New York City’s Central Park. What could it mean?

“See you tomorrow,” she wrote. “#TaylorSwiftYahoo1Day”