Here are all the celebrity halloween pictures this year. The list here includes Katy, Jessica Alba, Maria Menounos, Sarah Hyland, Lady Gaga, Christina Milian, Laura James, Keenyah Hill, AJ and Aly Michalka, Amber Rose, Black China, Courteney Cox, Nicola Peltz, Lily Allen, Teresa Moore, Julie Henderson, Katherine McNamara, Dorothy Wang, Hanna Beth, Lily Lane, and Courtney Bingham Sixx.
