Twitter pic round-up, Halloween edition! Daniel Radcliffe and Sabrina Carpenter celebrated the premiere of their new film Horns.
Niall Horan, Zayn Malik, and Louis Tomlinson did press while Miley Cyrus smiled at the amFAR gala. Troian Bellisario got to work on set with her counterpart.
Sarah Hyland celebrated Halloween on set and with a friend and Austin Mahone shared a group selfie. Sabrina also hit the pumpkin patch with Olivia Holt.
Ariel Winter smiled with a friend and Ashley Benson readied for Halloween parties. Justin Bieber took his brother trick or treating and Harry Styles made a face.
Liam Payne did press with Louis and Taylor Swift was a pegacorn for Halloween. Rowan Blanchard had fun in the woods while Aly and AJ Michalka were Romy and Michelle.
Vanessa Hudgens made a new friend and Perrie Edwards mixed it up for the holiday. Lucy Hale posed with a co-worker and Ariana Grande shared a selfie.
Ashely Tisdale painted her face and Selena Gomez hit the studio. Lily Collins posted a picture of her costume and Luke Hemmings and Calum Hood were Mario and Luigi.