Evan Peters & Halsey Make Red Carpet Debut at 'American Horror Story' 100th Episode Celebration!

Evan Peters and Halsey are attending their first public event as a couple!

The 32-year-old actor was joined by the 25-year-old singer as they arrived at the American Horror Story 100th Episode Celebration on Saturday night (October 26) at Hollywood Forever in Hollywood, Calif.

PHOTOS: Check out the latest pics of Evan Peters

Evan and Halsey attended the event dressed up Sonny Bono and Cher as they celebrated nine seasons of American Horror Story.

The night before, Evan and Halsey were spotted holding hands as they hung out at her Halloween party.

It was first reported that Halsey and Evan were an item after they were spotted holding hands on a date at Six Flags in late September. They were spotted together again earlier this week.

20+ pictures inside of the couple arriving at the event…