I saw this on Party Perfect. What a cute cake idea! Candice Drew, the one who made it, said "I baked two cakes in 9x13 pans, then trimmed the edges to get the shape that I wanted. Placed them together end to end on the cake board, frosted the whole thing, scored the frosting with dental floss, then used kit kat candy bars for the black keys. VERY easy!" I'm in love with this idea!!