A lot of people have reworked "Hotline Bling" in the last few months, but today one of the world's biggest pop stars jumped into the fray. "Keep getting asked for a remix," Bieber wrote on Twitter. "U know @drake is my brother for life...should we do this?" More recently, he Tweeted, "Call me 231 377 1113 on my cell phone." People who made the call were treated to a tinny version of Bieber's "Hotline Bling;" listen to snippets below and a recording of the call here.