Ali Zafar has paid his glowing tribute to the legendary mountaineer Ali Sadpara who went missing along with two foreign climbers; John Snorri from Iceland and MP Mohr from Chile during his K2 winter expedition. The singer has released a tribute song Paharon Ki Qasam for the ace mountaineer, which was originally sung by Kamal Masood. It has been produced by his production house Lightingale Records. The video features a compilation of shots of Sadpara and scenic shots of the mountains. The lyrics are especially poignant given that the entire nation was praying for Sadpara’s safe return. “No nation can thrive without recognising and celebrating their heroes. Ali Sadpara was one such unsung hero who dedicated his entire life and risked it to accomplish unprecedented feats for his country. This is the least I could do: sing for an unsung hero so that he is etched into our memories for as long as there is music,” Ali Zafar wrote in a Facebook post. It is to be mentioned here that Sadpara and his companions were declared dead a few days ago after they were last seen on February 5.