Based on the search results, "What Jhumka" is a song from the Bollywood movie "Rocky Aur Rani Kii Prem Kahaani" released in 2023. The song is sung by Arijit Singh and Jonita Gandhi and composed by Pritam. It is available for download on various websites such as Pagalworld, Pagalfree, Pagalnew, and Ghantalele.