Beck and Paul McCartney perform together at PETA benefit
YouTube

Beck and Paul McCartney collaborated during PETA's 35th anniversary benefit gala on Wednesday in Hollywood, delighting the crowd with their joint effort. You can listen to their version of "I've Just Seen A Face" by using the media player included with this article.

McCartney was the headliner for the event, which was hosted by actresses Anjelica Huston and Pamela Anderson. Alicia Silverstone, RZA, Bill Maher, Jason Biggs, Fred Willard, James Cromwell, Maggie Q, and Jillian Michaels were among the personalities honored by the animal rights organization.

He has been one of the most prominent animal rights supporters, including the September announcement that The Beatles had donated the use of their hit "Can't Buy Me Love" to PETA for their latest adoption campaign video. McCartney has been a vegetarian since 1975, and also supported other animal-oriented charities including the Humane Society of the United States, Humane Society International, World Animal Protection and the David Shepherd Wildlife Foundation.

Other supporters of PETA in the music world, according to Look to the Stars, include Ariana Grande, Leona Lewis, Bryan Adams, R.E.M.'s Michael Stipe, Natalie Imbruglia, Carrie Underwood, Dave Navarro, The Who's Roger Daltrey, Pink, Justin Bieber, and Russell Simmons.

Musically, McCartney kicked off 2015 by teaming with Rihanna and Kanye West on the hit single "FourFiveSeconds," which was certified double Platinum by the RIAA for sales of over 1.8 million units and topped Billboard's Hot R&B/Hip-Hop Songs Chart, reaching number four on the overall Billboard 200 singles list.

He also appeared with Paul Simon as part of the "Saturday Night Live" 40th anniversary special in February, and more recently, shared lead vocals on rock supergroup Hollywood Vampires' cover of his single "Come and Get It," which appeared on the debut album that they released on Sept. 11.

In October, McCartney will be continuing his "Out There" concert tour, with just a handful of shows remaining. Below are the currently scheduled performance dates:

Oct. 13 - Nationwide Arena, Columbus, OH
Oct. 15 - Bryce Jordan Center (State College), University Park, PA
Oct. 17 - Air Canada Centre, Toronto, ON, Canada
Oct. 21 - Joe Louis Arena, Detroit, MI
Oct. 22 - First Niagara Center, Buffalo, NY

For more on Paul McCartney, visit his artist page at AXS.