@dailymail: Blake Lively allegedly threatened to leak embarrassing private texts from bestie Taylor Swift unless the pop star agreed to publicly back the actress in her feud with co-star Justin Baldoni, DailyMail.com can exclusively reveal. A court filing alleges that the Gossip Girl alum had tried to pressure Swift, 35, to issue a public statement in support of her and urged her to delete text messages between them during her escalating legal battle with Baldoni, 41. The latest twist sheds further light on the collapse of Lively and Swift's once-close friendship - which has gone cold amid the actress's high-stakes lawsuit. Since then, both Swift and Lively have been subpoenaed for communications about the case, despite the superstar's attempts to distance herself. #blakelively #taylorswift #celeb #court #justinbaldoni