Hundreds of thousands of people on Sunday packed gaypride events across the U.S. from New York to San Francisco, with overall attendance expected in the millions for what amounted to a celebration of a freshly endorsed right to marry.

In San Francisco, a parade that at times resembled a rainbow-colored dance party snaked through downtown. Cheerleaders, dancers and proud families of lesbians andgays swooped up Market Street as spectators 10 to 15 people lined both sides of the street.

There were "Hooray for Gay" and "Love Won" signs. There were rainbow flags and knee socks, umbrellas and tutus.

SF Pride Board President Gary Virginia said the exuberance was amplified given Friday's U.S. Supreme Court ruling that same-sex couples can wed in all 50 states. Still, he said more needs to be done in housing and job discrimination in the United States and for lesbian, gay, bisexual and transgender people around the world.

"Today, we celebrate," Virginia said. "Tomorrow, we get back to work."

Hundreds of thousands of people packed gay pride events from Chicago to New York City, Seattle to San Francisco, with overall attendance for events expected in the millions. In New York City, organizers expected about 22,000 people to march while in San Francisco, organizers put the number at 26,000.

New York Gov. Andrew Cuomo used newly granted powers to officiate at the wedding ceremony of a same-sex couple in Manhattan. It was held in front of the Stonewall Inn, where in 1969 gay bar patrons stood up to a police raid, launching the moderngay rights movement.

State law did not allow Cuomo to officiate at wedding ceremonies until last week. The authority to do so was granted as part of a slew of legislation passed days ago.

Nikita Lowery, a 28-year-old resident of Chicago, said she decided to attend that city's parade for the first time this year. "I feel like it's a true celebration now," she said.

At gay pride parades in Paris and other cities outside the U.S. on Saturday, the U.S. Supreme Court's ruling was hailed by many as a watershed.

"Soon in all countries we will be able to marry," said Celine Schlewitz, a 25-year-old nurse taking part in the Paris parade. "Finally a freedom for everyone."

Street celebrations were boosted Saturday in Dublin, where Ireland mounted the biggest gay rights parade in the country's history.

More than 60,000 people paraded at the culmination of a weeklong gay rights festival in the Irish capital. While the mood was already high following Ireland's referendum last month to legalize gay marriage - becoming the first nation to do so by popular vote - many marchers said the Supreme Court ruling provided a bonus reason to celebrate.

In Turkey, police used water cannons to clear a rally Sunday in Istanbul. Between 100 and 200 marchers were chased away from Taksim Square after a police vehicle fired several jets of water to disperse the crowd. It wasn't clear why the police intervened in the peaceful rally. The crowd regrouped a few blocks away.

In San Francisco, police say a bystander was shot at a gay pride event at the city's civic center Saturday when several men got into an argument unrelated to the celebration. A 64-year-old man was shot in the arm, and he is expected to survive, Officer Carlos Manfredi said on Sunday.

Dykes on Bikes traditionally kicks off the city's Pride parade. Riders revved their engines for five minutes and received a sprinkling of silver glitter from a bystander before setting off at 10:30 a.m. to hoots and cheers and unbridled applause.

Corporate sponsors included home-sharing platform Airbnb, which had a float with dancers shimmying on a bed and in a bathtub. Apple sent a large contingent of people clad in white T-shirts.

Kelsey Brosler, a 17-year-old high school student from Concord, California, and mother, Carlene Brosler, 45, were among the spectators. The younger Brosler, who recently came out as pansexual, said the Supreme Court decision was a long time coming.

"Definitely the fight is not over yet. I know everyone here is still fighting," Kelsey said. "Even though it's a very happy event, there's still more to come."