Sam Woolf Plays Ed Sheeran's 'Lego House' on 'American Idol'Sam Woolf Plays Ed Sheeran's 'Lego House' on 'American Idol''American Idol' aired tonight (Jan. 15), and one 'Idol' hopeful who stood out was guitar-playing 17-year-old Sam Woolf, who performed Ed Sheeran's 'Lego House.'Cassandra RoseCassandra Rose