- The soundtrack for the film is anchored by a heartfelt performance of The Beatles' "Golden Slumbers" (occasionally mixed with the song that follows it on the Abbey Road medley, "Carry That Weight") by Jennifer Hudson. We initially hear it when young Nana Noodleman (voiced by Hudson) performs it in the musical Epiphany, the production that inspires Buster to become a theatre owner, but it recurs throughout the soundtrack at key moments (particularly the aftermath of the theatre's destruction and the montage of its restoration), the rueful lyrics about there once having been a way to go back - a way now implied to be closed off forever - providing the perfect accompaniment to some of the film's saddest moments, while the gentler side of the song is equally apposite for the happier moments.
- While it's a brief joke, Scarlett Johansson kills those couple of lines from Carly Rae Jepsen's "Call Me Maybe" that Ash sarcastically sings to Buster.
- The Gipsy Kings' 1987 version of "Bamboléo" already has such an infectiously catchy rhythm that it's hard to resist getting up and dancing while hearing it. In the film, Rosita clearly agrees with that sentiment, as when she hears it playing on the PA system in an otherwise almost deserted supermarket, she almost subconsciously launches into a kick-ass dance routine and finally shakes off the nerves about dancing that have held back her performance throughout the film. The security guard watching her on camera, who's even nice enough to turn the music up for her, says it best:Supermarket Security Guard: [over PA] Lady on Aisle 6... that... was awesome.
- Meena's absolutely breathtaking rendition of Leonard Cohen's "Hallelujah" is enough to send chills up your spine.
- During the montage where Meena and Buster are preparing for the preview, we get a jazzy cover of Daft Punk's "Around the World" by Señor Coconut and His Orchestra.
- The entire final concert is one awesome song after another.
- First, we get Reese Witherspoon as Rosita singing Taylor Swift's "Shake It Off", and while the suitability of the song to her voice is somewhat polarising, she nonetheless performs with so much passion, ably supported by Nick Kroll as Gunter. In the film, the performance is so outstanding that it finally helps Rosita's husband Norman to show his love for her again after spending most of the film in an overwork-induced stupor.
- Then there's Taron Egerton as Johnny, giving a red hot rendition of Elton John's "I'm Still Standing", the piano and the vocals doing the man himself proud. And in the film, Johnny's father watches the performance from his prison cell and is so blown away he breaks out of jail to find Johnny and tell him how proud he is of him.
- This is followed by Scarlett Johansson as Ash, performing the film's most notable original song, Dave Bassett's "Set It All Free", an outstanding rock number exquisitely performed by Johansson, with a great guitar accompaniment. In the film, even her ex-boyfriend Lance is enraptured by the song, and it seems to dawn on him what a mistake he made pushing her away. The Japanese-dubbed version, performed by actress Masami Nagasawa, is also awesome.
- Since Seth MacFarlane channels Frank Sinatra for his performance as Mike, it's only fitting that he should finish with a round of Ol' Blue Eyes' Signature Song, the Paul Anka/Claude Francois/Jacques Revaux-penned "My Way", with such soul that even Frank himself would likely be impressed. In the film, the fact that Mike is able to keep performing even as he is almost sucked into the blades of the police helicopters pursuing Johnny's dad is icing on the cake.
- Finally, there's Tori Kelly as Meena belting out a no-holds-barred delivery of Stevie Wonder's "Don't You Worry 'Bout a Thing". A performance so powerful that in the film, it almost knocks the remains of the theatre down again but is the final argument that persuades Nana Noodleman to put up the funds to allow Buster to re-build and re-open the theatre.
- There's the closing credits song, "Faith" by Stevie Wonder and Ariana Grande. Having two great artists from two different generations singing together is awesome.
Awesome Music / Sing