Demi Lovato has revealed that her 2015 song "Cool for the Summer" was about hooking up with a famous woman.
"I actually released it before I came out as bisexual," Lovato said of the song during an appearance on SiriusXM's "The Howard Stern Show" on Monday.
"When I came out, my dad was like, 'Yeah, you have a song called 'Cool for the Summer,'" she added.
In "Cool for the Summer," the lead single from Lovato's fifth studio album "Confident," Lovato sings of having "a taste for the cherry."
"Don't be scared, 'cause I'm your body type / Just something that we wanna try," she sings.
Asked by Stern if the woman she wrote the song about is aware that it's about her, Lovato replied: "No."
Stern then asked if it was about someone famous, to which the 31-year-old singer replied: "What if she is?"
"Is she?" Stern asked again.
"Yeah," replied Lovato, adding that she won't reveal who the person is because she's "in a relationship now" and "that would be inappropriate."
After being asked by Stern if the relationship was ever public, Lovato said: "No."
Elsewhere in her interview with Stern, Lovato opened up about how her relationship with her father impacted her previous romantic relationships.
"I think what I went through is that I had a phase of dating older men and dating older guys. I went through a phase when I was attracted to older guys because of my daddy issues, obviously," she said.
Lovato previously dated "That '70s Show" star Wilmer Valderrama, who was 12 years her senior.
The relationship began when Lovato was 17 and Valderrama was 29.
"When you're in those development years, you should absolutely not be with somebody that is older than you by that much. It's just unhealthy and toxic," she added. "I look back on the past and think, 'That's gross.'"
Lovato is currently dating 32-year-old musician Jutes.
"Now I'm at a place where I'm in an amazing relationship and my boyfriend is a year older than me. We're growing together and it feels so healthy," she said.