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Ariana Grande has her first No. 1 hit.

Her latest single "Thank U, Next," which is only a week old, has debuted atop the Billboard Hot 100 chart, delivering the first chart-topper for the singer, who has previously seen her songs reach No. 2 and No. 3.

The song is debuting with a massive 55.5 million U.S. streams and 81,000 downloads. It follows her recent album Sweetener and it comes as she is said to be working on another full-length album, which could possibly arrive before the end of the year.

"Yeeeeeee baby’s first number one," Grande tweeted Monday afternoon when the Billboard chart news became official, although the No. 1 had been expected for days.