Solange Posts Photos of Beyoncé on Instagram, Possibly Throws Shade

The Knowles sisters' social media activity continues to captivate and mystify a nation of lookie loos. The latest? After purging her Instagram account, Solange has posted some old photos of Beyoncé for Throwback Thursday, acknowledging in the caption that at least one of them "will be deleted tomorrow." »5/15/14 2:20pm5/15/14 2:20pm