As vocalists go, few have the distinct style and panache of Anna Wise. A classic voice, soothing yet bold, a hybrid of vintage soulful groove and 2015 feminist chic. That must have been the thinking behind Kendrick Lamar’s recent decision to invite Anna to contribute on ‘good kid, m.A.A.d city’ – she lent vocals to four tracks on the double-album as well as being hugely involved in the overall creative\u002Fwriting process.