A/N: And now the song that brought this fic to life. Annella, Trouble. Electroswing. I don't own it at all. Inspiration only: Siren singing this song about her escapades in front of a crowd. BTW, ever notice that Seiren doesn't have pupils like the other characters? Also, in the manga drawing, she has a long pearl drop that's part of the star and feather earring. Just pointing out a canon design bit to avoid trouble with changing a character.

"Ladies and gentlemen, welcome to the Iceberg Lounge. We have a special treat for you. Please put your hands together for the newest star singer in her debut,the mystery from the deep, the enchantress of the sea, Seiren!"

The lights dimmed for a moment then flared brightly. A beautiful young woman with long light blue hair in a darker mermaid style dress stood on the singer's platform before the iconic iceberg. She had pearl drop earrings and a starfish diadem on her brow. Her bare shoulders and arms had a pearl-like sheen and those eyes...She started slow, the band a back up for her but quickly started up in an upbeat tempo that had several patrons immediately tapping their feet.

I am in so much trouble
Busted, arrested, guilty
Oh you got me
Again

I'm busted, arrested
So guilty
You got me
There's no excuse for me

An interesting song choice, though he had never heard it before.

Sitting at an ideal spot to see the entrances and exits of the room, piercing blue eyes took in the Penguin's newest acquisition. He hoped to have his questions about her answered. In less than a week of interrupting Penguin's dockside rendezvous, the self proclaimed bird man has a new singer. One who had a program made up about her and tickets to her performances at the Lounge sold out practically over night. That didn't add up to him and he intended to find out everything about her. Where those ears real, for instance? Aliens and Atlantians were, but Arthur and the handful of his people he had seen and met didn't have fin-like ears. Nor were their eyes...otherworldly.

I thought I'd have my way with it
I only meant to play with it
I almost had a day with it
I couldn't get away with it

She moved elegantly in the limited way that particular gown allowed. Her motions fluid and her voice—amazing. He had heard many talented singers over the years and this was just another clue that she wasn't from around here. So what brought her here and to Penguin specifically? There had been a singer or two who had used their vocals to call out for help but this could just be a performance. She was certainly having fun up there and the crowd was responding positively.

Again and again and again
Trouble
Again and again and again
Trouble

You're busted, arrested
So guilty
I got you
There's no excuse for you

"Mr. Wayne! What a wonderful surprise!"

Penguin held out his hand to Bruce who shook it in turn. "I was lucky to get a ticket to tonight's show," he confessed. "They were practically gone before I even heard about it."

"It's been a busy week for all of us here," Penguin confessed with a nod. "What do you think? Are you enjoying yourself?"

Bruce glanced back at Seiren who was making a smooth turn on the platform.

You thought you'd have your way with it
You only meant to play with it
You almost had a day with it
You couldn't get away with it

"I've never heard anyone like her. The music is great too!"

"Yes, she's really something special. Found her wandering around. Lost. No home, no family, amnesia I think. Brought her here to get her some food and she started singing." The words poured out of his nemesis with a sincerity that had Bruce raise his eyebrows involuntarily. He mastered himself again and gestured for the short man to continue.

"She doesn't seem bothered not knowing what's going, which is strange."

"Did she not want to go to a hospital?"

Penguin shook his head. "Hasn't left the building since she got here. I tried bringing a doctor in—house call, you know—she sent him on his way with a smile. I've never heard the dialect she speaks before, but it sounds like Japanese to me." He shrugged. "Seiren understands me better than I do her, so we've done alright, I think."

"So you have a new permanent singer in residence."

Penguin grinned. "If her plan for this exclusive show idea of her works, and it looks like it does, I suppose I do. The best part is she asks to be paid in fish!" He laughed to himself as he left Bruce alone at his table.

Surely there was more to the arrangement than that. He had heard women joke about willing to work for chocolate but still...

+.+.+

Red stilettos

Red stilettos

Red stilettos

Walking through the city

Bruce had no luck getting a word with the Iceberg's singing sensation. She had admirers for miles and Penguin-heads forming a barrier between them and her when she stepped off the stage for the night.

The next night looked to yield similar results, so he left early and slipped into Penguin's office with no one being the wiser, of course.

Until the door opened.

"What are you doing here?"

The light framed her in silhouette. Was that a power or ability of hers?

Seiren closed the door behind her. Only the moonlight filtering through the window aided their sight.

"This is Mr. Cobblepot's office. I don't think you were invited in here."

Having been caught out, Batman turned his masked gaze on her. "I'm actually looking for answers on you."

"Me?" she asked surprised, raising a hand to her throat.

"Where did you come from? Why are you here? How do you know The Penguin?"

Seiren was taken aback by the barrage of his questions but gamely walked towards him with a confident grin.

"Hm, if you want answers you'll have to give me something in exchange. That belt for example."

Caught off guard was not something that happened to him often, but curse his...pride if he let an attractive woman get too close to him.

Seiren jumped back with a yelp, holding her injured hand as she eyed him warily. "That's a strong protection you've got on that belt."

Then that little smirk was back. She braced her forearms in front of her as if warding off an attack. "Give it to me! Nega-blaster!"

Nothing happened. He waited. Extended his senses but there was nothing behind him or coming at him from either side. The sudden light in the room alerted him a second too late. She ran.

Seiren would no doubt alert Penguin so it was time for him to leave. The sound of heavy foot falls could only mean the penguin-heads were charging up the stairs but they wouldn't find anything that said he had been their except for Seiren's word.

The next night told him something at least. Seiren had Penguin's trust to a point. Security was tight and they circled around the club endlessly. What security wasn't watching, new and old ones were. Then there was her growing fan base. Eyes were on her constantly and when the show was over, she sequestered herself quickly and quietly and not in any of the rooms Batman had thought the diva would take to.

This would take a little longer. He would wait.

A/N: That's it for this fic! Could there be more? Maybe, but this is all the steam I had for this song inspired fic. I had to work my way from the "club scene" backwards and give a conclusion, if not an ending. Also, yeah without her Animamate bracelets, there was no attack coming. From what Sailor Moon lore tells us, that only happens in the transformed state anyway, not the civilian one. That's not to say that, as an alien, she doesn't have abilities that are unique to her. She may have Atlantean abilities like breathing underwater, swimming really fast without proper fins, maybe talking to the smarter animals of the oceans like dolphins. Who knows? I'd also like to point out that I am aware Seiren has a civilian name, but I chose not to use it.

Batman is almost god-moding in some fanfiction; have you noticed? I'm aware that he's "The Batman" but he's also human. I chose TB: TAS because I could choose the Penguin in the character tab, I loved that series growing up and that is the series that crossed over with Superman TAS and then later they got Justice League/Unlimited.

Why Seiren? She's my favorite character in the later series apart from Minako/Sailor Jupiter. She's never far from my mind as we get closer to MerMay. I even have a mer-sona based on her.

Why Penguin? And it's simply because: where would Seiren perform if she were a swing singer? The Art Deco setting and electro swing (my current music kick) was the answer as I listened to Trouble. Who runs a club that she could sing in? It all happened in that song and so I started writing while the music kept playing. So there's the long and short of it.

Thanks for reading this fic and making it this far. Please leave a Review, even if it's just to say "I read it." Happy reading!