Saskatoon date April 8th ?21st? or both??

According to the bar manager in Saskatoon @the Roxy
my buddie talked to him last night
The tour dates say April 8th
According to the manager it's the 21st of April
as an aftershow for Motorhead,the bartender also told him the same thing
 
I came here to ask this as well. I will most likely go if it's the Motorhead aftershow. Hopefully it is both!