"Rowdy Baby" is a hugely popular Tamil song from the 2018 film Maari 2. The music was composed by Yuvan Shankar Raja and features vocals by Dhanush (who also wrote the lyrics) and Dhee. The song stars Dhanush and Sai Pallavi, and its vibrant, energetic dance was choreographed by Prabhu Deva and Jani Master.

Key highlights about "Rowdy Baby": Officially released as a single on November 28, 2018, and the official music video dropped in January 2019. The video was shot at AVM Studios, Chennai, and became viral mostly due to the choreography, Dhanush and Sai Pallavi’s chemistry, and catchy music. It holds the distinction of being the first South Indian—and specifically Tamil—cinema song to cross 1 billion views on YouTube, and as of September 2025, it has over 1.8 billion views (combining both video and lyric versions). The song was widely acclaimed, topping streaming charts, trending internationally, and was recognized by Billboard in the Global Top 10 Music Videos of 2019. Sai Pallavi mentioned it was special to her, as she worked with Prabhu Deva on this song, having earlier missed meeting him as a contestant on his reality dance show a decade ago. The song’s catchy nature, danceable beats, and vibrant picturization made it a staple at celebrations, weddings, and college events.

"Rowdy Baby" is considered an iconic moment in Tamil and South Indian pop culture, setting new standards for music virality and cross-industry appeal..