In one sentence, describe what the following article is about: You will need a white, knee-length dress to use as your base. You can use an old dress as a base, or buy one from a thrift store or on sale. Here is how you can make her dress:  Cut 8 to 11 large circles out of white construction paper. Vary the sizes a bit. Paint the circles with red paint to look like peppermints. Coat the red areas with glue, then add red glitter on top.. Secure the peppermints to the dress with glue, Velcro, safety pins, or double-sided tape. The styles that work the best for this are character dance shoes or Mary Janes. The heel should be between 2 and 3 inches (5.08 and 7.62 centimeters) tall. If you can't find red, glittery heels, you can make your own by coating them with glossy decoupage glue (ie: Mod Podge), then adding red glitter.  You will need several layers of decoupage glue and glitter. Let each layer dry before doing the next. Seal your shoes afterwards with a final coat of decoupage glue. Look for a wig that falls past your shoulders. It can be straight or wavy, but it should have straight, blunt-cut bangs. Keep your eyeshadow simple, with silver or grey in the creases. Make your eyeliner bold, with cat-eye or wing tips. Apply thick, heavy false lashes and a touch of pink blush. Finish the look with pink lipstick. Get a pair of red gloves, preferably made from pleather, vinyl, or fake leather. Cut the fingers off so that they end at your first finger joint (about 1 inch/2.54 centimeters) long. You can also add a thick, white bangle with red candy stripes on it. Katy Perry also wore nude, shimmery tights with rhinestones on them.
Summary: Decorate a simple white dress with large, paper peppermints. Get a pair of red, glittery heels. Get a black wig. Do the usual Katy Perry makeup, but with pink lips. Finish off the look with some accessories.

In one sentence, describe what the following article is about: You can purchase digital copies of songs from several locations online. Make sure that your music file is not a protected or locked, like what you get when you purchase music from iTunes. Tumblr will only host .mp3's, so if you have any other file, you'll need to convert it to an .mp3. It's found underneath the search bar. This file will be hosted on Tumblr's servers, so you need to check the box that you have permission to use this file under Tumblr's Terms of Use. If it's not already associated with the audio file, you can also upload the cover art. Go back to your blog dashboard, and click "edit" on the audio post. Then click on the dashed square with the text "Select album art" to find a .jpg or .png on your computer of the album cover. If the album art is copyright protected, you may not have permission to post it. In that case, you can do without or you can upload another image that reminds you of the song.
Summary: Download an .mp3 file of the song. Click on the "Upload a file" link. Select the .mp3 file from your computer. Upload the album cover art.

In one sentence, describe what the following article is about: Leave the decal on the window with the transfer tape still attached for around 24 hours. This helps ensure that the decal sticks fully to the window. If you don't let the decal set, it may not adhere to the window as strongly.
Summary:
Let the decal set for 24 hours.