I think Jesse McCartney's song, Just so あなた Know, is good for new moon because it reminds me of Jacob's feelings for Bella and how he doesn't want to let her go just because she belongs to Edward.
i think that the song should be 'maybe We're not meant 2 be' によって theory of a deadman because the 日 that jacob first turns into a 狼, オオカミ and he just blows off bella and doesnt speak 2 her in a long time