The song was released on 30 May 2011, as the second single from the record; a remix version featuring American rapper Flo Rida was eventually made available.

In October 2014, "Club Rocker" was involved in a copyright infringement lawsuit, with Spanish singer Robert Ramirez Carrasco accusing Play & Win of plagiarism.

To promote the recording, an accompanying music video was shot by Alex Herron and uploaded onto Inna's YouTube channel on 26 June 2011 to positive response.

She further promoted the recording through live performances, including at the NRJ Music Tour and Starfloor in 2011, while appearing on several radio stations.

[7] The track was written and produced by Romanian trio Play & Win members Sebastian Barac, Radu Bolfea and Marcel Botezan, and samples French disc jockey Seight's "Bass Attitude" (2010).

[4] "Club Rocker" is an electropop song with "twisted techno riffs" and a "show–off production"; its "jerky" refrain is accompanied by "massive" electro beats.

"[11] "Club Rocker" was involved in a copyright infringement lawsuit in October 2014, with Spanish singer Robert Ramirez Carrasco accusing its composers, Play & Win, of copying the key accords of his song "A Minute of Life" (2011).

He also claimed that he lost critical contacts and had suffered of depression as a result, further wanting representatives of the Uniunea Compozitorilor și Muzicologilor din România (Union of Composers and Musicologists from Romania) to analyze the two recordings.

Inna's manager, Ștefan Lucian, negated the accusations: "The musical theme is not only used in several Play & Win songs, but also in other international records.

[8][9] Similarly, Jon O'Brien from AllMusic positively noticed that the song deviated from the formulaic production on the album, but criticized Flo Rida's vocals as "phoned–in".

[3] Kevin Apaza from the same website was similarly positive towards "Club Rocker" and foresaw its commercial success, but likened the line: "She's moving like oh, oh oh" to "Who's That Chick?"

[28][29][30] An accompanying music video for "Club Rocker" was shot by Alex Herron — with whom the singer had already collaborated for her "Sun Is Up" (2010) visual — during the span of three days in Brașov and Bucharest, Romania.

[7][18][31] A special casting call for a role in the visual was drawn, with the winner to be determined after downloading Internet Explorer 9 and answering a few questions about Inna.

The next scene is set inside the singer's car — driven by Mihai Leu[18] — wearing a grey leather jacket.

For the track's bridge, the singer is surrounded by multiple couples kissing in a huge human pyramid, while fireworks are blown out.

A Melty editor called the singer's outfits "quite free and crazy", and wrote: "Ready to reclaim the dancefloor, Inna preserves her festive and dancing spirit while her energy continues to make us move [...].

"[17] French portal Pure People felt that the video suited the song well and appealed to the male audience,[36] while a Unica writer thought: "[...] a modern love story was created in a turbulent city.

[16] The visual received notable airplay on Polish television, where it peaked at number three on ZPAV's component video chart in September 2011.

[38][39] During the shooting for the music video of "Club Rocker", the singer uploaded a clip onto YouTube of her singing a capella portions of the song, which was praised by critics.

[42][43] The singer also performed the track on 23 July during the NRJ Music Tour in Beirut and at the Starfloor on 26 November 2011 at the Palais Omnisports de Paris-Bercy in Paris.