"Nine, eight, seven ..."

A crowd of about 10,000 people collectively began counting down on the University of Colorado's Norlin Quadrangle just before 4:20 p.m. Sunday.

Yet the massive puff of pot smoke that hovers over CU's Boulder campus every April 20 -- the date of an annual, internationally recognized celebration of marijuana -- began rising over the sea of heads earlier than normal this year.

"Oh forget it," one "

CU’s 4/20 pot smoke-out draws crowd of 10,000