Rihanna albums customarily race to the top of the charts over much of the globe but, after a three year hiatus and a stuttering start, her eighth studio album Anti is beginning to get into its stride.

Racing 27-1 in the USA and 19-1 in Canada to become her second No.1 in the former and fifth in the latter, Anti avoids the dreaded second week slump by dint of the fact that, whilst it was hard to find on CD ...