Superman-inspired costume, giving Gotham City Siren cosplayers their next big inspiration. But beyond the eye-catching look, fans may be wondering—why is Harley channeling the Man of Steel? The answer lies in a major DC initiative that’s guaranteed to get fans talking.

DC’s May solicitations brought an exciting preview of Harley Quinn #51, set to release on May 28, 2025, by Elliott Kalan and Mirka Andolfo. While the preview included a synopsis, the real standout was the variant covers—particularly Guillem March’s ‘Supersmash-Up’ variant, which showcases Harley in her own take on Superman’s iconic red, blue, and yellow look.

Though she keeps the classic tights from her current recurring costume, she now sports a long-sleeved, Superman-inspired bodysuit, complete with the Man of Steel’s signature “S” shield—albeit with a signature Harley Quinn twist.

Harley Quinn Dons the Man of Steel’s Costume (& It’s Pure Cosplay Inspiration)

Main Cover by Gary Frank for Superman: Secret Origin TP (2011)

At first glance, Harley’s Superman-inspired look resembles a classic Supergirl bodysuit. However, a closer look reveals her unmistakable Harley Quinn twist to the costume. The most notable change is the “S” shield—it still features the iconic “S,” but its border now mimics Harley’s signature diamond shape, often seen in her logo. Additionally, Harley, known for her dual-color aesthetic, incorporates a two-tone design into her Superman bodysuit. This time, however, she swaps her signature red and black for Superman-blue and a striking aquamarine.

Another standout detail is Harley’s pose, as she mimics one of the Man of Steel’s most iconic moments—the classic ‘shirt rip.’ Traditionally, this pose features Clark Kent removing his glasses and tearing open his white button-down to reveal the Superman emblem underneath. Harley hilariously recreates this moment, pulling off a pair of glasses that spell “HQ” while ripping open her own button-down to unveil her bodysuit. This makes for one of her most unique looks yet—an epic tribute to Superman that would undoubtedly inspire an unforgettable and standout cosplay.

Why Is Harley Quinn Wearing a Superman Costume?

Harley Quinn Debuts Man of Steel-Inspired Look Ahead of Summer of Superman

While Harley’s Superman-inspired look is undeniably cool, some fans may be wondering why the Gotham City Siren is channeling Big Blue. The answer lies in DC’s Summer of Superman event—an initiative set to flood the season with Superman-related content. While James Gunn’s Superman: Legacy is arguably the most anticipated project, DC is also rolling out a slate of new Superman comics, including titles featuring Superman-adjacent heroes like Supergirl. Harley Quinn’s Supersmash-Up variant cover serves as both a nod to and a celebration of this Superman-centric event.

Harley Quinn #51 is available May 28, 2025, from DC Comics!