It was written alongside Kevin McCall, Sevyn Streeter, and producer DJ Frank E, with Calvin Harris receiving an additional writing credit following his accusation of plagiarism.

"Yeah 3x" is an uptempo dance-pop, Europop, and electro house song; it uses a video game-type beat and features a thick bassline and big synth chords.

Brown promoted the song with live performances on televised shows, including Dancing with the Stars, Today and the 2011 MTV Video Music Awards.

[2] On September 2, 2010, Brown tweeted that the Polow da Don-produced song titled "Calypso" would be released soon as the follow-up single to "Deuces" (2010).

[2] According to Robbie Daw of Idolator, "Yeah 3x" is a mixture of "Forever" (2008) and La Roux's "Bulletproof" (2009),[13] while Sean Michaels of The Guardian commented that the song seems to be inspired by David Guetta's Eurodance sound.

[14] Nick Levine of Digital Spy musically compared the song's production to the sounds of Usher, Taio Cruz, Jay Sean, The Black Eyed Peas and Calvin Harris.

[16] It premiered on MTV on October 21, 2010,[17] and features cameo appearances by Teyana Taylor, Kevin McCall, and Future Funk from America's Got Talent.

[18] The video opens with Brown walking down a deserted street wearing a navy sweatshirt, dark blue denim, and white sneakers.

Wearing a black vest, trousers and a red skinny tie, Brown then leads a mob of kids, teenagers and older residents down the street.

During the bridge, Brown can be seen wearing a hot pink/salmon-colored blazer, gold chain and, in one shot, carrying a massive shiny boombox.

In the final scene, Brown is wearing a peach blazer while baring his chest, and performs the last bit of choreography with male and female dancers.

"[19] Brad Wete of Entertainment Weekly wrote that, "it's genuinely a fun clip, absent of any overdone, sexed up R&B corniness.

Host Tom Bergeron told the On Air with Ryan Seacrest radio show that, "I did tell the producers it may be to their advantage to not have me interview him, because my natural tendency would be to say something.

"[24] On July 15, 2011, Brown performed the song in front of an audience of 18,000 at the Rockefeller Plaza in New York City for the Today concert series.

[26] Brown was eventually joined onstage by tuxedo-clad dancers and began dancing to the 1993 Wu-Tang Clan single "Protect Ya Neck".

[29] Amar Toor of AOL Radio called the song "dance-friendly", and wrote "with its electro-vibe and frenetic pulse, 'Yeah 3x' sounds like the perfect club banging anthem to get any night off to a raucous start.

"[30] Ed Easton Jr. of radio station WNOW-FM noted the song's similarities to Brown's 2008 single "Forever" (2008), writing that "it has that fun and simple lyrical flow and puts more emphasis on the intoxicating beat.

"[7] Bri LaPelusa of UR Chicago called it a "true party anthem" due to the chorus: "You love to drink / So do we / Get my bottles / Bring 'em to me / Hold your glasses up / People everywhere.

"[32] Hannah Ash of The Harber Herald wrote that "it's a great song, full of party-riffic electronic beats made for dancing.

"[34] When asked in an interview with Australia's Herald Sun if Brown knew him, Harris replied, "Well, he's never heard of me, that's the funniest thing.

[43] The song was certified five times platinum by the Australian Recording Industry Association (ARIA), denoting sales of 350,000 copies.

[49] In New Zealand, "Yeah 3x" reached number one on January 10, 2011, where it remained for one week,[50] and became Brown's sixth number-one single in the country.