Could Taylor Swift be turning superhero? Plenty of rumours have been spreading lately about the upcoming "Deadpool 3", including one picking up steam suggesting Swift may be making a cameo. [readmore label="READ MORE: " link="https://etcanada.com/news/995605/all-the-celebs-who-have-attended-taylor-swifts-eras-tour/" text="All The Celebs Who Have Attended Taylor Swift’s Eras Tour" /] According to the rumour, which has been around for…