Ariana Grande Kissing A Girl, And It's Lizzie Gillies In 'Accidental' Instagram Post: Some Not Buying 'Attention-Grabbing' Stunt

Ariana Grande has -- wait for it -- kissed a girl. The former Nickelodeon star posted a video showing her kissing Victorious co-star, Elizabeth "Lizzie" Gillies. Ariana later claims the Instagram f...