Kim Petras (30) and Sam Smith (30) have something special to celebrate. Their hit "Unholy" went to number one on the US Billboard charts. Petras became the first transgender artist and Smith the first non-binary person to top the list, according to Billboard.

"I'm so grateful," Petras writes in an Instagram post. "Sam, I can't thank you enough for being with me for years. I'm so honored to be a part of your first number one in the US [...]."

For Kim Petras, who was born in Cologne in 1992 and currently lives in Los Angeles, it is also the best US placement of her career so far. The song "Unholy" became a viral hit thanks to the TikTok platform. The song is also number one in Canada, Australia and Great Britain. In Germany, the title made it into the top ten.

In a 2017 interview with The Times, Sam Smith said he didn't identify as male or female. In September 2019, Smith wrote in an Instagram post that he no longer wanted to be addressed with male pronouns and preferred the gender-neutral "they/them".