Credit: MJ KimPaul McCartney has been one of the biggest celebrity supporters of People for the Ethical Treatment of Animals, aka PETA, so who better to serve as the entertainment at the animal-rights organization’s 35th anniversary party? A performance by the former Beatles star closed out the star-studded event, dubbed “All Together Now,” which took place Wednesday night at the Hollywood Palladium in Los Angeles.

According to recaps posted at PETA.org, McCartney’s set included renditions of the Beatles classics “Birthday” “Let It Be,” “Hey Jude” and “Lady Madonna,” and his 1993 solo tune “Looking for Changes,” which he dedicated to the organization’s cause. Sir Paul also was joined by modern-rocker Beck for performances of “Drive My Car” and “I’ve Just Seen a Face.” A few fan-filmed clips of McCartney’s set, with and without Beck, have been posted on YouTube.

While onstage, McCartney commented, “When I first heard the name, that’s what appealed to me, People for the Ethical Treatment of Animals. I thought that was really a very dignified, very cool title. They’ve got 35 years of saving so many animals. And we love them.”

Following the gala, McCartney posted a message on his Facebook page thanking “Beck and everyone else who helped us celebrate #PETA35 in Hollywood last night!” He also quipped in the note, “Sorry we didn’t get around to playing ‘Beck in the USSR,’ ‘Get Beck’ or ‘Paperbeck Writer.'”

The bash was hosted by Angelica Huston and Pamela Anderson, and also featured the presentation of awards to various celebs and activists who have for their contributions to specific animal-rights issues. Among the evenings honorees were Motley Crue drummer Tommy Lee, rapper RZA, comic Bill Maher and actors Alicia Silverstone, Jason Biggs, James Cromwell and Fred Willard.

Other stars who attended the party included Black Sabbath‘s Geezer Butler, Rob Zombie, No Doubt‘s Tony Kanal, Kesha, Moby, songwriter Diane Warren, William H. Macy, George Lopez, Joaquin Phoenix, Kevin Nealon, Molly Shannon, Emily Deschanel, Paula Poundstone, Russell Simmons, Sela Ward, Seth Green, and Tony Hawk.

Copyright © 2015, ABC Radio. All rights reserved.