Jack Antonoff's Ally Coalition Talent Show brought out the Bleachers singer's All-Star cast of friends on Monday night (Dec. 12) at Webster Hall in New York, to raise awareness and money in support of homeless LGBTQ youth and LGBTQ equality. Among the performers on the bill were Carly Rae Jepsen, Charli XCX, CHVRCHES' Lauren Mayberry and Antonoff's fun. bandmate Andrew Dost, as well as comedians Jordan Carlos, Hasan Minhaj and Mike Birbiglia and Antonoff's girlfriend, Lena Dunham.

Not on the official bill? Lorde, who has been working with Antonoff on her second album for most of the last year, and who sat next to Jack on a piano bench for a surprise cover of Robyn's "Hang With Me." That was great, sure, but the best part was Antonoff announced that the event -- which benefited New York's New Alternatives, which provides safe spaces and services to some of the city's most vulnerable LGBTQ youth -- raised $100,000 for the organization.

Always good to have a special guest that'll blow the doors off. Thanks, @lordemusic A photo posted by The Ally Coalition (@allycoalition) on Dec 12, 2016 at 8:09pm PST

coming out of hiding with ella and covering hang with me by robyn which we've played in the studio so many times on piano — jackantonoff (@jackantonoff) December 13, 2016

In keeping with the tone of the night, Mayberry played a cover of Katy Perry's "Firework" that the crowd loved, as well as a cover of Joni Mitchell's "A Case of You."

“We have some real work to do - The Election was devastating. The Ally Coalition remains determined to ensure everyone has equal rights," Antonoff said in a statement. "Everyone can marry in the United States, but discrimination, hate crimes, and homelessness disproportionately impact the LGBTQ community. We must continue fighting those who work to end equality. Supporting centers like New Alternatives is a way we can help those who are most affected by the current state of LGBTQ discrimination."

Jepsen, who also performed "Run Away With Me" from her EMOTION album, also teamed up with Antonoff for a low-key version of "Shadow."

And, of course, Charli played "Boom Clap."

Some more pics from the event, which ended with an all-star rendition of Fleetwood Mac's "Go Your Own Way," according to Gothamist.

Carly and Jack singing Shadow!! -- by @gabkirsch A photo posted by The Ally Coalition (@allycoalition) on Dec 12, 2016 at 6:21pm PST