So, yesterday she asked fans on Facebook/Twitter which song they wanted her to add to the setlist, and most of them (including myself) said Nobody's Home, and the crowd kept chanting 'Nobody's Home, Nobody's Home!' during the concert... So she played it!
Also she didnt play the song because of the twitter responses, she played it because the crowd were chanting "Nobody's Home, Nobody's Home" and she heard them during the intro of 'Push'.
Poor 'Push' didn't get played at all last night. I hope she won't remove it from the setlist! I love that song!