Listen to Happy Birthday Bolu Aaj online. Happy Birthday Bolu Aaj is a Rajasthani language song and is sung by Harisingh Khedli. Happy Birthday Bolu Aaj, from the album Happy Birthday Bolu Aaj, was released in the year 2024. The duration of the song is 10:17. Download Rajasthani songs online from JioSaavn.