A/N: This fanfic was inspired by Trollapony's Forbidden Books comic series on DeviantArt. Also, this fanfic will include my Ponysona, as well as the ones that represent Mic The Microphone, The Living Tombstone, and Wooden Toaster. If you need to know what the Ponysonas look like, you can find pictures on DeviantArt.

It was a typical morning in Ponyville. As always, I was checking the mail for my latest subscription of Unicorns Monthly, a magazine made specially for Unicorn Ponies like me.

But just as I was about to read the latest issue, I noticed an envelope with the royal seal. I opened it using my magic and read the letter.

Dear Kari,

I am sure you are as excited as I am about the upcoming wedding in Canterlot. I will be presiding over the ceremony, but would very much like you and your friends to provide the music for the reception. See you all very soon.

Yours, Princess Celestia

Wedding? What wedding? I didn't know about a wedding. Fortunately, there was also an invitation in the envelope, so I read it.

Princess Celestia cordially invites you to the wedding of Princess Mi Amore Cadenza and Shining Armor.

I gasped in surprise. Princess Mi Amore Cadenza (aka: Cadance) was the one who taught me everything I needed to know about magic. She was my private mentor since I was too advanced for Princess Celestia's class. Now she wants me to help out with the wedding.

I was so excited, I decided to tell my friends about the big news.

I found the gang at the usual hangout: DJ Pon-3's Studio for the Musically Gifted. You see, my three closest pals are the singers of TwentyTen, the most popular group in all of Equestria. The group consists of master rapper Mic, remix artist Tombstone, and autotune expert Toaster. They might have wrote their own hit songs like Beyond Her Tomb, Rainbow Factory, and September, but I recently became their songwriter in case any of them ran out of ideas.

"Hey guys!" I happily said when I found them at the studio.

"'Sup Kari," Tombstone said. "What are you so happy about?"

"Princess Celestia wants us to be in charge of the music for the wedding reception," I happily explained as I showed them the letter.

"Are you talking about the one between Cadance and Shining Armor?" Toaster asked. "Because we also got the same letter."

"I'm actually surprised Princess Celestia wants us to sing," Mic said. "Our songs aren't really...appropriate for weddings."

"Probably because TwentyTen is the most popular group in all of Equestria," I recalled. "But think about it. How cool is it for you guys to perform at one of Canterlot's biggest events?"

"As cool as last year's 'performance' at the Grand Galloping Gala?" Mic asked.

"None of us were expecting the Gala to end up like that," I recalled. "Most of the ponies there didn't appreciate your taste in music, anyway."

"What if the same thing happens again?" Toaster asked.

"It won't," I reassured. "Cadance was my private mentor. I'm sure she wouldn't mind my three closest friends performing at the reception."