Kim Petras and Sam Smith are making music history in a big way. The two pop stars, both 30, recently released their dance floor-ready collaboration, “Unholy,” and after topping the Official U.K. Top 40 chart for the last four weeks, the anthem has now made it to No. 1 in the U.S. The song has topped the Billboard Hot 100 charts, the first time for both of them. With this week’s announcement, Petras, a German-born singer-songwriter, became the first openly transgender artist to have a No. 1 song in the U.S., while Smith, the British multi-Grammy-winning artist, became the first nonbinary musici…
