Mother Mary & POTR are still one of the best tour openings ever. The juxtaposition of MM's heartfelt vulnerability seguing into the no-****s-given bravado and swagger of POTR just.. embodies the tour and Rih herself to a tee
I'm still mad about her "choreo" and "vocals" during all of the urban uptempos. The audience at my concert was too buy singing along and bopping to notice, but after going back and watching footage on YouTube I was kind of pressed. It's like she didn't even try
Mother Mary was an amazing opener, I could've done without the whole of act one her live vocals throughout the tour on Act 1 were really poor, also I felt like she wasn't into the songs and didn't put any effort in at all
take a look at the new dark edgy rihanna with a harsh voice and rap verses 
