Post Malone's new country album, F-1 Trillion, debuted at number one on the Billboard 200 chart, coinciding with a heartwarming video he shared of his budding friendship with Dolly Parton.  The Instagram clip shows the two musicians embracing during a photo shoot, with Post expressing his admiration for the legendary singer.  Their collaboration on Posty's album, "Have the Heart," has been well-received by fans. Parton has praised Post Malone's kind words about her.  During the adorable photo shoot, Post was so nervous, telling Dolly, “You are amazing, I’m so… I can’t believe it, my heart’s beating so fast.” Have you ever met a celebrity? Share your story.