Anushka has rendered two songs Kesariyo and Music Band Na Karo picturised on Pia in Hum Tum Shabana.
Anushka also sang the song that was picturised on Pia and Abhishek Bachchan in Mission Istanbul.
Also, Anushka was a participant on Khatron Ke Khiladi with Pia and with Minnisha Lamba (who also stars in Hum Tum Shabana) in Pop Stars! Anushka had ended up winning both these shows.
The link effect at work!