Magazine : 
Bollywood's 10 Richest Playback Singers
Sukhwindar Singh:
After becoming famous from the popular song, ‘Chaiyya Chaiyya’ Sukhwinder Singh won many best playback singer awards. He got his first break in the movie ‘Karma’ but his actual career started with ‘Dil Se.’
He has sung for many films including Dabangg, Agneepath, Band Baja Barat, Fashion, Om Shanti Om, Chak De India and Veer. He is also popular in Punjabi music industry. He charges around 
4 lakh for each song.
Sonu Nigam:
Singer, musician, music composer, actor, music director and television presenter—Sonu Nigam is a highly versatile artist. Hindustani classical singer Ustad Ghulam Mustafa Khan trained him.
In the singing career spanning over two decades, he has recorded his voice for almost all top-rated directors of Indian music industry. He has also worked with international music producers.
Sonu Nigam takes 5-6 lakh rupees for each song.
Mohit Chauhan:
Started musical career with a band Silk Route, Mohit Chauhan is now popularly known for his songs in movies like Rockstar, Rajneeti and Once Upon A Time In Mumbai. He also sung for advertisements like L’Oreal Paris India and some reality shows. He won many awards for best playback singer since 2002.
Since his debut, he gained lot of popularity and is now one of the highest paid playback singers. He takes about 6-8 lakh for each of his song. He never received any formal training in music, but sings and plays guitar, harmonica and the flute.
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