The track features a collaborative vocal performance by and D.Soldierz , with lead actor Varun Dhawan making his debut as a rapper.
The song (often referred to as "Aww Tera Happy Bday") from the 2015 Bollywood film ABCD 2 is a high-energy hip-hop track that redefined traditional birthday greetings in Indian cinema. Composed by the duo Sachin-Jigar , the song serves as a quirky "party anthem" designed to move away from routine, "happy-go-lucky" melodies into a more eccentric, "wacky" genre. Artistic Collaboration and Composition The track features a collaborative vocal performance by
: The song's international appeal was highlighted in 2024 when American actress Sofia Vergara used the track in a viral Instagram post to wish a friend a happy birthday, sparking a "frenzy" among Indian fans. "happy-go-lucky" melodies into a more eccentric
: Critics categorized the song under the "4G" (Go Goa Gone) genre—a style known for addictive beats, unconventional singing, and "over-the-top" voice programming that emphasizes fun over traditional vocal clarity. The track features a collaborative vocal performance by