For her to release a single after so long, you know it has to be something special. In fact, it's so special that it's a tribute to her friend, the late singer and LGBT icon George Michael.
"You know when you've got one of those friends that you don't have to see all the time but when you do, you just click back and you have the most honest relationship? I would say that's the kind of relationship," she told Billboard in an interview. "I wanted him to be my boyfriend, but I wasn't his cup of tea."
In the interview, Halliwell revealed that they weren't only close friends, but also roommates.
"When I left the Spice Girls, I went and lived with him," she said. "When I had my first child and I had nowhere to live, I went and lived with him for nine months. He was always a very kind person."
Halliwell seems to be paying that kindness back.Read more at Instyle