Celebrity Kourtney Kardashian-Barker Kourtney Kardashian and Travis Barker's Halloween Costumes Are Unsurprisingly On-Brand Kravis forever. By Christopher Luu Christopher Luu Instagram Twitter Christopher is a Southern California-based editor and has been with InStyle since 2018. He covers all things entertainment, celebrity, and culture. InStyle's editorial guidelines Published on October 22, 2021 @ 04:21PM Pin Share Tweet Email If everything goes to plan, 2021 marks the very first of many Halloweens for Kourtney Kardashian and Travis Barker, but fans are already getting a peek at exactly what the holiday entails for everyone's new favorite pop-punk couple. Earlier this week, Barker and Kardashian made an appearance in Malibu — not at Nobu for once — at the NoCap x Travis Barker House of Horrors concert. For the occasion, the two ditched their usually mismatched outfits for a coordinated costume: Sid Vicious and his girlfriend, Nancy Spungen. Kardashian posted a gallery from the event today, writing "till death do us part" alongside the images, which show her in a blonde wig and sheer top along with a dramatic glittering smoky eye and leather pants. Barker shared even more photos, writing, "Throw away the key." His outfit included Vicious's signature leather jacket as well as a prop cigarette. Kourtney Kardashian Shared New Photos of Her Beachfront Engagement Luckily for fans, there's another NoCap x Travis Barker House of Horrors concert set for Oct. 28, which will include a performance from Machine Gun Kelly. That means that there's a very high probability that Barker and Kardashian can arrange for their pals MGK and Megan Fox. A coordinating costume isn't exactly out of the question, since the 2021 MTV VMAs were basically a double date for the group and they all dressed accordingly. With everyone involved loving leather and rock 'n' roll, expect plenty of inspo when it comes to group costumes, black tongues and all.