Anna Kendrick, Rebel Wilson and Brittany Snow are back with the high notes, with Hailee Steinfeld and the original's producer Elizabeth Banks directing the sequel spotlighting the singing competitions. But the a cappella genre has had Hollywood harmonizing in more movies and TV shows than most Barden Bellas fans realize. See which of your favorites have previously traded all the instruments in the world for a pitch pipe.
Tom Selleck, Steve Guttenberg and Ted Danson joined their voices on the 1950s R&B song (recorded by The Spaniels and The McGuire Sisters) to help stop baby Mary from crying. Though mostly in unison, watch the trio perform "Goodnite, Sweetheart, Goodnite" cribside here.
The season-one "A Pox in Our House" episode of the long-running sitcom had John Stamos holding down the solo of a "Hodja (Make Me Spin)" performance, after which Bob Saget tried his best to continue the lead on the Todd Rundgren 1985 release. Watch the eight-person ensemble perform here, complete with the group's well-harmonized exit.
The Seth MacFarlane series occasionally relies on its resident barbershop quartet to lighten up relatively serious moments, like diagnosing a patient with AIDS or explaining the process of a vasectomy. Watch the group humorously educate Peter on the medical procedure here.
The boy band stole the 2003 Grammy Awards broadcast with an medley of Bee Gees hits "Lonely Days," "How Can You Mend a Broken Heart," "How Deep Is Your Love" and "Stayin' Alive." Watch the legendary award performance – adding a couple of extra layers to the classic Brothers Gibb three-part harmonies, complete with beatboxing by Justin Timberlake – here.
Will Ferrell, Paul Rudd, David Koechner and Steve Carrell covered "Afternoon Delight," the Starland Vocal Band hit from 1976, in the Adam McKay comedy. The Channel 4 News Team also recently performed the arrangement live for the first time at the sequel's premiere in Sydney. Watch the a cappella film scene here, or the full-fledged music video here.
VIDEO: 'Anchorman 2' Cast Performs 'Afternoon Delight' Onstage at Sydney Premiere
The film's family dinner scene hit a high note when John Michael Higgins aimed to demonstrate "the pulse of the collective" mid-meal. Jennifer Aniston cooperated with her brother and took the bass line, while Vince Vaughn refused to champion the kick drum. Watch the elaborate introduction to Yes' "Owner of a Lonely Heart" here.
Ed Helms didn't bring his musical abilities to the NBC cubicle mockumentary until its third season, in which Cornell University graduate Andy Bernard said he was in an a cappella group called Here Comes Treble (also the episode title). He joined the group for ABBA's "Take a Chance on Me," Boy George's "Karma Chameleon" and Edwin McCain's "I'll Be" (watch it here).
Dane Cook sent an elderly male quartet to serenade Jessica Alba with an a cappella rendition of Beyonce's "Crazy in Love," complete with Cook – dressed in a penguin suit – popping out of a giant present. Watch the not-so-well-received musical present here.
Adam Scott and Kathryn Hahn led the a cappella appearance in this Adam McKay film, (somewhat) singing Guns N' Roses' 1988 hit "Sweet Child of Mine." Watch the rocky Range Rover rehearsal here to see the uncomfortably perfect family struggle to lock in their harmonies.
In an episode titled "The Warblers" in the show's second season, Fox introduced the Dalton Academy Warblers, a private school group fronted by Darren Criss. Originally voiced by the Tufts University Beelzebubs (who competed on The Sing-Off in 2009), their covers range from Katy Perry's "Teenage Dream" to "Blackbird" by The Beatles. Watch them compete with Pink's "Raise Your Glass" here.
The Texas-based a cappella quintet won season three of The Sing-Off with electro-infused covers, and has since released two studio albums, a holiday record and a handful of evolution-style viral videos. Watch as they collaborate with violinist Lindsey Stirling to cover Imagine Dragons' "Radioactive," which won one of the first-ever YouTube Music Awards, here.
USA introduced Psych audiences to Dule Hill's collegiate a cappella group, Blackapella, in an episode titled "Let's Doo-Wop It Again." He reunited with Mekhi Phifer and Jaleel White to solve the murder of the fourth member. Watch James Roday change the quartet's name to Quarterblack here, and then jam with the group as they "Psych Out" to "Feels Good" here.
Anna Kendrick, Rebel Wilson, Brittany Snow and Skylar Astin fronted the wildly successful film that spotlights collegiate a cappella competitions, which THR called "a nerdy, sexy musical romp." With worldwide earnings at $112 million, a sequel is slated for 2015. Watch the riff-off scene featuring songs about sex here.
The season-eight episode of the CBS show, "The Time Travelers," had Neil Patrick Harris and Josh Radnor traveling through time. What better use of the ability than to unite with themselves to perform Billy Joel's 1984 doo-wop single "The Longest Time" at MacLaren's? Watch the snap-filled booth performance here.
Fresh off her controversial twerking performance with Robin Thicke at MTV's Video Music Awards, Miley Cyrus stopped by Late Night With Jimmy Fallon to record a much more harmonious version of "We Can't Stop" with Fallon (who often features his barbershop quartet The Ragtime Gals) and The Roots. Watch the viral cover of the hit here.
After three seasons, the reality competition of a cappella music returned to NBC in 2013, with Mark Burnett (Survivor, The Voice) as executive producer, Jewel joining Shawn Stockman and Ben Folds as judge, and plenty of other changes.