A siren is a twin-tailed "super" mermaid, so if it's a mystical Halloween look you seek, keep reading to swim your way through Starbucks mermaid costume ideas that will call to you like a real ...

Whether you want to dress to impress or get your outfit figured out before the big night, these ideas ... curvy costumes of the year! Our favorite thing about this Alluring Sea Siren Mermaid ...

There are also more than 230,000 Wonder Woman costume ideas saved on Pinterest right ... already more popular than unicorns, and sexy sea siren looks are trending up globally.

Doja Cat nailed this all-red costume of the faceless secretary from The Powerpuff Girls aka the epitome of an office siren. You either already had a crush on Megan Fox, or this movie made you ...

Once she made the costume — the base of which was cleverly crafted out of a styrofoam box — and turned on the flashing red collar, all Aliyah had to do was turn on a siren sound effect for her ...

But there's no reason to panic—if you don't have your costume together yet, this post just might save the day. The idea: Be a "Mad woman," meaning copying the gorgeous retro look of the ladies ...