The "Bad At Love" singer, 24, and the American Horror Story star, 32, caused the dating rumors to swirl after photos emerged of them holding hands at Six Flags Magic Mountain outside Los Angeles last week, as published by DailyMail.com.
And it is well-known that Halsey is a big fan of Peters as she said in a since-deleted tweet in 2013, "Petition for Evan Peters to date me," followed by "I'm so in love with Evan Peters I'm so whipped I'm whipped as f**k!" in 2014.
The photographs from the amusement park jaunt show Halsey and Peters lifting their arms up with their hands locked during a roller coaster ride. The pair were smiling and laughing while looking into each other's eyes.
Back in 2012, Halsey first confessed her Twitter "crush" on Peters, who was known for playing unsavory characters in the AHS franchise. "Seriously Evan Peters stop making me attracted to alleged sociopaths and accused murderers," the New Jersey native wrote, per DailyMail.com.
During that time, Peters was involved with actress Emma Roberts. The pair ended their on-again/off-again relationship, including an engagement, in June 2015. Roberts is reportedly dating actor Garrett Hedlund.
Halsey called it quits with her on-again/off-again beau G-Easy in October of last year. Since then she was linked to British entertainer Yungblood, but has not been photographed with him as of late.