Washington [US], September 19 (ANI): Zayn Malik is set to embark on his highly anticipated first solo tour, titled ‘Stairway to the Sky.’ The former One Direction star made the exciting announcement during a surprise appearance on ‘The Tonight Show Starring Jimmy Fallon’ on September 18, as per People magazine. In a playful reveal, Malik, 31, emerged from behind the curtain wearing a black leather jacket, coffee mug in hand and took over Fallon’s laptop to perform his new single, ‘Stardust,’ from his latest album, ‘Room Under the Stairs’, released on May 17. He then dropped a note on Fallon’s …