Hayden Panettiere’s former fiancé, Wladimir Klitschko, offered an emotional tribute on what would have been the late actress’ 37th birthday. “Today is Hayden’s birthday. Instead of celebrating the way we had planned, today we celebrate her life, her spirit, and the love she brought into this world,” Klitschko, 50, wrote via Instagram on Friday, August 21. “I want to thank all of Hayden’s fans, friends and everyone who has reached out for the incredible outpouring of love and support.” He continued, “At a time filled with so much sadness, your kindness has reminded me that t...