5,000 came to see 1D at Natick Mall near Boston

And the 1D Infection continued:  

About 5,000 people came to meet the band on March 4, 2012 at the Natick Mall autograph signing.  

And it was crazy: 

Harry wrote on twitter:  

"Boston was amazing tonight!! And thanks for the cap…I like caps."

"Great Signing today in Boston!! Thank you everyone.. There’s lots of Irish people in Boston."

Niall wrote on twitter:

"Wow!natick mall. the signing was amazing! Thank you guys so much, as always directioners comin out in big numbers! Love you guys! 1DinBoston.

"Theres so many irish people in boston...love it."