Udit and Alka both started their singing duets from Qayamat Se Qayamat Tak (1988), since then they have sung over some hundreds of songs together.
Following are some of their hit songs together.
1. Baant Raha Tha
2. Mera Dil Gaya Meri Jaan Gayi
3. Hum To Dil Se Haare
4. Pyar Humein Pyar Tum Kitna Karte Ho
5. Shukeriya Shukeriya
6. Mohabbat Ke Din Hoon
7. Mujh Se Milti Hai Ik Ladki Rozana
8. Haye Mera Dil
9. Abhi To Mohabbat Ka
10. Pyar Ishq Aur Mohabbat
11. Yeh Dil Mohabbat Mein Waar Don
12. Rab Di Qasam