The former Beatles singer Sir Paul McCartney is predicted to have a lesser crowd than Teen sensation Justin Bieber.
Justin Bieber is presumed to outdraw the Beatle, as he prepares for today’s free concert.
Paul McCartney's May 10 concert in Mexico attracted some 200,000 people and organizers expect "a little more" for the Bieber event.
Veteran Paul McCartney is popular for having big crowds at his concerts.
However, this time it is predicted that Justin Bieber’s concert may have a bigger crowd.