By Janine DeFano JASON WALKER HAS A LOT TO BE ‘SO HAPPY’ ABOUT THESE DAYS His latest track – a collaboration with two-time Grammy-nominated dance producer Tony Moran and gospel singer-turned-electronic dance music phenomenon (for his work with David Guetta) Chris Willis – is already in the top 20 on Billboard and is rising. The song is a feel-good track, because, as Jason explains, “With all that’s happening in the world today, isn’t that what everyone...