“I Kissed a Girl” singer Katy Perry just released her next single with the artwork.

The single is called “Birthday” and will be featured on her new album Prism. The artwork that is accompanied by her single is a throwback picture in honor of #TBT that was posted on her twitter. The picture was showing Perry from when she was a young girl. She was clothed in a flower-patterned dress while her sister’s, Angela Hudson, face is blurred, who is sitting right next to her in the similar attire.

"I'm challenging myself again, pushing my limits as I do, as a Scorpion does," she revealed to E! News at MOCA's 35th Anniversary Gala Presented by Louis Vuitton on Saturday.

"I'm very excited because I believe this is my best work yet as far as live performances. It's going to be just as colorful and fun as before, bit's obviously not based on candy. It's grown up. It's more mature."

As earlier reported by Huffington Post, Shortly after posting the image, Perry tweeted that if her 52 million followers could manage to get #BIRTHDAY trending, that she would de-blur her sassy sidekick. When the tag began to trend, Perry showed her sister's face. Birthday balloons and were also photoshopped onto the picture.