Revelers watch the 251st annual St. Patrick's Day Parade March 17, 2012 in New York City. (Photo by Allison Joyce/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
Children shake hands with revelers during the 251st annual St. Patrick's Day Parade March 17, 2012 in New York City. (Photo by Allison Joyce/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
Sen. Chuck Schumer (D-NY) marches during the 251st annual St. Patrick's Day Parade March 17, 2012 in New York City. (Photo by Allison Joyce/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
Revelers watch the 251st annual St. Patrick's Day Parade March 17, 2012 in New York City. (Photo by Allison Joyce/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
Revelers cheer on the marchers during the 251st annual St. Patrick's Day Parade March 17, 2012 in New York City. (Photo by Allison Joyce/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
The Irish Dancing Music Association marches during the 251st annual St. Patrick's Day Parade March 17, 2012 in New York City. (Photo by Allison Joyce/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
Marchers drum during the 251st annual St. Patrick's Day Parade March 17, 2012 in New York City. (Photo by Allison Joyce/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
The Irish Dancing Music Association marches during the 251st annual St. Patrick's Day Parade March 17, 2012 in New York City. (Photo by Allison Joyce/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
Mayor Michael Bloomberg (2L) and Police Commissioner Ray Kelly (C) march during the 251st annual St. Patrick's Day Parade March 17, 2012 in New York City. (Photo by Allison Joyce/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
A man takes part in the 251st St Patrick's Day Parade up 5th Avenue in New York on March 17, 2012. (Photo credit: TIMOTHY A. CLARY/AFP/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
Parade-goers watch the 251st St Patrick's Day Parade up 5th Avenue in New York on March 17, 2012. (Photo credit: TIMOTHY A. CLARY/AFP/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
Parade-goers watch the 251st St Patrick's Day Parade up 5th Avenue in New York on March 17, 2012. (Photo credit: TIMOTHY A. CLARY/AFP/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
Young parade-goers Harley and Presley Eidens look on during the 251st St Patrick's Day Parade up 5th Avenue in New York on March 17, 2012. (Photo credit: TIMOTHY A. CLARY/AFP/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
Parade-goers attend the 251st St Patrick's Day Parade up 5th Avenue in New York on March 17, 2012. (Photo credit: TIMOTHY A. CLARY/AFP/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
Parade-goers watch the 251st St Patrick's Day Parade up 5th Avenue in New York on March 17, 2012. (Photo credit: TIMOTHY A. CLARY/AFP/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
New York City Holds Annual St. Patrick's Day Parade
Members of the New York City Fire Department march during the 251st St Patrick's Day Parade up 5th Avenue in New York on March 17, 2012. (Photo credit: TIMOTHY A. CLARY/AFP/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
(credit: Kyle Reitan)
New York City Holds Annual St. Patrick's Day Parade
Members of the New York City Fire Department march during the 251st St Patrick's Day Parade up 5th Avenue in New York on March 17, 2012. (Photo credit: TIMOTHY A. CLARY/AFP/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
Parade-goer Krys Freebes watches the 251st St Patrick's Day Parade on 5th Avenue in New York on March 17, 2011. (Photo credit: TIMOTHY A. CLARY/AFP/Getty Images)
New York City Holds Annual St. Patrick's Day Parade
(credit: Kyle Reitan)
New York City Holds Annual St. Patrick's Day Parade
Cardinal Timothy Dolan along the parade route for the 251st annual Saint Patrick's Day parade in New York City on Saturday, March 17, 2012 (credit: Kyle Reitan)
New York City Holds Annual St. Patrick's Day Parade
A parade goer at the 251st annual Saint Patrick's Day parade on Saturday, March 17, 2012 (credit: Kyle Reitan)
New York City Holds Annual St. Patrick's Day Parade
The NYPD Emerald Society marching in the 251st annual Saint Patrick's Day Parade in New York City on Saturday, March 17, 2012 (credit: Kyle Reitan)
New York City Holds Annual St. Patrick's Day Parade