Caitlyn Jenner's first appearance and more from NYC's pride weekend

Caitlyn Jenner recceived a big warmwelcome from fans as she celebrated Pride in New York City on Sunday.The 65-year-old arrived to the Dream Downtown Hotel to watch CandisCayne's DayDream show from PHD rooftop lounge with six friends andwore a big smile as she was greeted by the cheering crowd.

“She was very shy but very nice,” apartygoer told HELLO! “She was with Candis Cayne and two other transwomen. She didn't talk to the crowd but waved when people beganchanting.”

Caitlyn looked poised and glamorous forthe event – hosted by Voss Events – wearing a white peplum shirt over a white skirt and her hair in loose curls around her shoulders. It was a bigappearance for the star, who has kept a relatively low profile sincemaking her debut on the cover of June cover of Vanity Fair.

Her appearance capped off acelebrity-filled weekend at New York City’s pride festivities. Actor andparade Grand Marshal Ian McKellen, who stars in the upcoming film Mr.Holmes, scheduled to be released in mid-July, proudly waved therainbow-colored flag as he greeted parade-goers.

He wasn’t the only actor toshow the love. Darren Criss, who is now starringin the Broadway musical Hedwig and the Angry Inch, posted aphoto on Instagram with co-star Rebecca Naomi Jones surrounded byrainbow flags – and of course wearing Hedwig T-shirts.

Chelsea Clinton also made an appearancein the parade, marching with volunteers as she campaigned for hermother Hillary Clinton’s presidential bid. Pop sensation Ariana Grande closed out the festivities at Dance on the Pier where she put on a custom show.

Record-breaking crowds gathered incentral London over the weekend, where model Cara Delevingne lookeddown on the parade from her vantage point on top of the Hotel CaféRoyal, posting a photo of the masses on Instagram. More than amillion people joined the festivities in the capital, according toorganizers.

British singer Rita Ora got into the spirit by wrapping herself in a rainbow flag inher dressing room at the London club G-A-Y where she performed hernew hit song 'Poison' on Sunday night.

In Canada, singer Elton John’s husband David Furnish served as grand marshal of theparade in Toronto. The two converted their civil partnership intomarriage last December and to mark Friday’s momentous Supreme Court decision, which was in favor ofsame-sex marriage across all 50 states in the U.S., the two re-posted photos from their ceremony on Instagram.