Turns out Lady Gaga’s just a big Daddy’s Girl. The quirky pop sensation got personal about her father’s open heart surgery on Twitter this week.  “My Daddy had open heart surgery today,” Gaga wrote in a message posted on her Twitter page Thursday afternoon. “And after long hours, and lots of tears, they healed his broken heart, and mine. Speechless.” Gaga updated her followers on her dad’s condition in a Tweet on Saturday, saying: “At the hospital. Giving daddy a foot rub while he falls asleep. He’s my hero.”‘