In this exclusive clip from this weekend’s episode of Austin City Limits, Sam Smith covers Whitney Houston ‘s classic “How Will I Know,” and he performs it in the most unique way — as a soulful ballad. It will send shivers down your spine. Smith revealed that he’s a huge Whitney fan , so that makes this performance even that much more special. Sam also performs his hit, “Lay Me Down”, “Stay With Me”, “Latch”, as well as a few other tunes.