There was a time when crowds did not bother me. But now

RIO DE JANEIRO, Brazil (AP) -- Screams and cheers greeted the Rolling Stones as they pulled up to their hotel Friday in a police motorcade, and die-hard fans were already staking out spots before an enormous stage on Copacabana Beach, where up to 2 million people were expected to attend the band's free concert Saturday night.

"We've been camped out here since 5:00 a.m. Thursday, and we're only leaving to take baths in the ocean," said Rodrigo Barduco, a 23-year-old student from Sao Paulo.

A week before Carnival festivities hit full swing, the concert already was drawing tourists and Brazilians to Rio de Janeiro -- which knows a thing or two about hosting massive parties.

Millions of people flock to Copacabana Beach each year for the city's New Years' Eve celebration, which features fireworks, tributes to Afro-Brazilian spirit deities and bands on several stages. In 1994, 3.5 million people hit the beach to see Rod Stewart in what the Guinness World Records Web site describes as history's largest live concert.

But Rio Mayor Cesar Maia is among the city officials already touting Saturday's Stones appearance as the biggest live concert ever, arguing that many of those counted at the Stewart show were on the beach to celebrate New Year's.

Stones fans were expected to fill fully half of the 4-kilometer (2.5-mile) beach. Eight video screens and 16 sound towers will give fans far from the action a glimpse of the sexagenarian rockers.

Security is a concern. Earlier this month, three people were crushed to death and 38 injured in Sao Paulo when thousands of fans surged through security barriers at an autograph session for the Mexican band RBD.

The city is deploying 10,000 police officers -- about three times the usual contingent for New Year's -- as well as 600 firefighters, civil defense workers and lifeguards, said Ana Maria Maia, Rio's subsecretary of special events.

The city's port authority also was preparing for the huge influx of boats expected to crowd the shoreline.

As workers put the finishing touches on the enormous stage, fans were hoping for a glimpse of the band.

"I'm here to see them," Cristina Spacarella, a 46-year-old tourist from Argentina, said Friday. But she said she would not go to the show itself -- "it's going to be too crowded."

Local media speculated that the Rolling Stones might visit the city's Sambadrome stadium, where the Carnival group Imperatriz Leopolinense was rehearsing, since Luciana Jimenez, who has a 6-year-old son with lead singer Mick Jagger, is a featured Carnival dancer for the group.

This is the Stones' third visit to the country, but it's the first time the band has played for free in Brazil, where few can afford tickets to see top international acts.

Fans also were camping out outside Sao Paulo's Morumbi stadium on Friday, hoping to be one of the first to enter the venue where U2 is playing Monday night.

Organizers were overwhelmed by huge crowds when the Irish band's tickets went on sale January 16. Police were called in to restore order when some infuriated fans threatened to break into the stores where tickets were being sold.