By Kevin Kayhart For Dailymail.com
Published: 06:47 GMT, 1 November 2019 | Updated: 08:14 GMT, 1 November 2019
She reprised her Black Mirror alter-ego Ashley O for Halloween earlier on Thursday.
But come night fall, when holiday revelers hit the streets and headed to parties to trick-or-treat, the pop princess showcased costume number two, which was a tag-team with her new beau Cody Simpson as Billy Idol and his longtime flame Perri Lister.
At one point, Idol and Lister were the toast of the post-punk scene of New York City following the huge success of the rock legend's 1983 album Rebel Yell.
Blast from the past: Miley Cyrus and beau Cody Simpson dressed up for Halloween as rocker Billy Idol and his 1980s flame Perri Lister
Before heading out on the town, Cyrus, 26, shared a snap of herself and Simpson in full costume with the caption: 'BILLY ❤️ PERRI.'
Simpson opted to wear a classic black leather jacket with metal studs, along with black fitted pants and a black tank top, all staples of Idol.
Of course, the Aussie star tried to recreate the White wedding singer's signature spiky blonde hairdo that has made him an easily recognizable rock star to the present day.
Cyrus, who was dressed in leggings and a white crop top, had not yet changed into her costume.