Life Exclusive: Watch Lily James sing the missing ABBA song from ‘Mamma Mia 2’ October 23, 2018October 27, 2018 Bryan Alexander, USA TODAY Comments Off on Exclusive: Watch Lily James sing the missing ABBA song from ‘Mamma Mia 2’ Lily James' version of ABBA ballad 'I Wonder' never made it into 'Mamma Mia! Here We Go Again.' But you can see the scene exclusively at usatoday.com.