Production notes

On January 25, 2017, Universal Pictures and Illumination announced that a sequel to their 2016 animated film Sing was in development. Writer/director Garth Jennings and producers Chris Meledandri and Janet Healy return along with voiceover stars Matthew McConaughey, Reese Witherspoon, Scarlett Johansson, Nick Kroll, Taron Egerton and Tori Kelly. The sequel took 4 years to make before the COVID-19 pandemic hits.

In December 2020, Bobby Cannavale, Letitia Wright, Eric André, Chelsea Peretti, longtime Illumination collaborator Pharrell Williams, Bono and Halsey were added to the voice cast.

Work on the film shifted due to the COVID-19 pandemic, and was done remotely following the temporary closure of Illumination Mac Guff (now renamed as Illumination Studios Paris). The scope of the theater in the finale was a major stepping stone to take over 10,000 animals for the crowd department, old and new ones designed by long-time Illumination artist Eric Guillon who worked on Sing and designed the new characters in the sequel like choreographer Klaus and the tarsiers. Fashion brand Rodarte designed some of the costumes used in the film.

Sing 2 grossed $162.8 million in the United States and Canada, and $245.6 million in other territories, for a worldwide total of $408.4 million. In the United States and Canada, the film earned $1.6 million from sneak previews held on November 27, 2021. The film had its wide release the following month on Wednesday, December 22, alongside The King's Man and The Matrix Resurrections, and was projected to gross $40–50 million from 3,892 theaters over its first five days of release. The film ended up grossing $22.3 million in its opening weekend (and a total of $41 million over the five-day frame) from an estimated 4.1 million theater admissions, placing second at the box office behind Spider-Man: No Way Home. Women made up 58% of the audience during its opening, with those below the age of 25 comprising 56% of ticket sales and those below 17 comprising 44%. The ethnic breakdown of the audience showed that 39% were Hispanic and Latino Americans, 35% European Americans, 15% African American, and 7% Asian or other. In its second weekend, the film remained in second place with $20.2 million. Sing 2 once again retained second place at the box office in its third weekend with $11.6 million. On January 8, 2022, Sing 2 became the first animated film of the COVID-19 pandemic to cross $100 million at the U.S. and Canadian box office as well as the first film since Frozen II (2019) to reach this milestone. It remained atop the box office top ten until its fifteenth weekend. Outside the United States and Canada, Sing 2 opened in several international markets on December 3, 2021. The film made $1.12 million in its first weekend, $1.5 million in its second, and another $1.5 million from 16 markets in its third. After screening in an additional 22 markets, Sing 2 earned $19.2 million in its fourth weekend and had the biggest opening for an animated film during the COVID-19 pandemic in both France ($6 million) and Mexico ($3.6 million). The film made $17.2 million in its fifth weekend, which included a $1.2 million opening in Ukraine, $17.1 million in its sixth weekend, and $8.4 million in its seventh weekend. In its eighth weekend, the film had strong openings in Germany ($3 million), Poland ($2.4 million), and Austria ($500,000). In its ninth weekend, the film earned $17.4 million from 62 markets, which included a $9.3 million opening in the U.K. In its tenth weekend, the film earned $14 million from 63 markets, which included a $1.1 million debut in the country of Denmark where pandemic restrictions had recently been lifted. The film crossed the $300 million mark worldwide in its eleventh weekend after adding $11 million to its total, which included a $2.2 million debut in the Netherlands. The film's gross remained consistent in its twelfth weekend with $10.3 million that included a 1% drop in the U.K. Sing 2 crossed the $200 million mark outside the U.S. and Canada in its thirteenth weekend. By March 6, the film had surpassed the original film's gross in the U.K. with $40.5 million. In its fifteenth weekend, the film added $3 million to its total gross and the Sing franchise as a whole passed the $1 billion mark. The film made $6.1 million in its sixteenth weekend, which included a $4.3 million opening in Japan. It added $3.6 million in its seventeenth weekend. The film crossed the $400 million mark worldwide with the addition of $1.9 million in its nineteenth weekend. It is the first film since Frozen II, the first animated film during the pandemic, and the ninth Illumination title to reach the milestone. It made $1.2 million the following weekend.

On review aggregator Rotten Tomatoes, the film has an approval rating of 72% based on 137 reviews, and an average rating of 6.1/10. The site's critical consensus reads, "Second verse, same as the first: For audiences that enjoyed the first installment, Sing 2 should prove another endearing diversion." On Metacritic, the film has a weighted average score of 49 out of 100 based on 28 critics, indicating "mixed or average reviews". Audiences polled by CinemaScore gave the film a rare average grade of "A+" on an A+ to F scale (the first Illumination film to receive this grade), while PostTrak reported 91% of audience members gave it a positive score, with 78% saying they would definitely recommend it. Justin Lowe, writing for The Hollywood Reporter, praised the musical set of the film, calling the "ragtag cast that Buster had brought for an amateur cast, had blossomed into a full-fledged company of professional performers". Peter Debruge, of Variety, also gave a positive review, saying the film is "an elaborate machinery of joy, and it's easier to appreciate how every choice seems designed to put a smile on people's faces". However, a few reviewers were disappointed by the film. Emily Clark of Plugged In praised the film's inspiring and emotional elements, but took issue with the fact that Meena "clearly tells Buster she's not OK kissing someone on stage, and he sort of dismisses her...The whole affair made me a bit queasy thinking about how many a young starlet has received her first smooch from a total stranger at the behest of adult directors and producers." Mark Kermode, who had given the first film a positive review, stated that Sing 2 overused its flashier technical effects and lacked the "homemade charm" that characterized the first film.