##           superbowl   shakira
## superbowl 1.0000000 0.9829166
## shakira   0.9829166 1.0000000

## 
##  Shapiro-Wilk normality test
## 
## data:  datos$superbowl
## W = 0.19306, p-value = 2.273e-15
## 
##  Shapiro-Wilk normality test
## 
## data:  datos$shakira
## W = 0.21164, p-value = 3.375e-15