Hailey Knox

New York-based singer/songwriter Hailey Knox rose to popularity with her acoustic covers of pop hits posted on the Internet. However, the social media star began singing long before, taking on the Beatles as a toddler and performing as a duo with her sister Samantha in her preteen years. It wasn't until 2014 -- when she posted her first cover, a rendition of A Great Big World's "Say Something" -- that she gained a larger audience that included industry vets and even pop singer Meghan Trainor. Her mature guitar-and-loop-pedal meditations on hits by various stars -- ranging from...