"Cola Song" is a song recorded by Romanian recording artist Inna for her third studio album, Party Never Ends (2013), and the Japanese counterpart of her fourth studio album Inna (2015), Body and the Sun (2015). It was made available for digital download on 15 April 2014 through Atlantic Records, which was the result of the singer signing a record deal with the label earlier that year. Initially planned to be named "Soy Latinna", the recording contains guest vocals from Colombian reggaeton performer J Balvin, who wrote and produced the song along with Andrew Frampton, Breyan Isaac, Thomas Joseph Rozdilsky and Andreas Schuller. The single is musically an electro house, electronic and Latin track which incorporates saxophone and horn in its instrumentation, and elements from Inna's previous collaboration with Schuller on "Piñata 2014" (2013).

Music critics were generally positive towards the single. While it was likened to Lana Del Rey's "Cola" (2012) and the appearance of J Balvin to that of Colby O'Donis on Lady Gaga's "Just Dance" (2008), many reviews noted the song as being summery. Others pointed out its commercial appeal, where the single was predicted to become a summer hit alongside Jennifer Lopez's "I Luh Ya Papi" (2014). "Cola Song" received a nomination at the Radio România Actualități Awards gala in 2015 for Best Pop-Dance Song.

Commercially, the single experienced success in Europe. While reaching the top 40 of the charts in various territories, it peaked at number eight on Spain's PROMUSICAE chart, and was certified Platinum there for sales exceeding 80,000 copies. In order to promote "Cola Song", an accompanying music video for the song was uploaded onto Inna's YouTube channel on 14 April 2014, being shot by John Perez in both Barcelona and Costa Rica. The visual portrays Inna performing to the song with three fellow background dancers or doing other activities in a tropical scenery, and was acclaimed by music critics who saw Inna's appearance as sexy, suggestive and lascivious. It was also nominated for Best Video at the Romanian Music Awards gala in 2014. For further promotion, the track was performed by the singer on various occasions, and was featured on dance video game Just Dance 2017 and used for the FIFA World Cup 2014.

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