Top play back singer Sonu Nigam was hospitalized on friday due to low blood pressure, fatigue and disc slippage. However, sources close to the singer refused to comment in this regard. The singer has a huge fan base in the country as well as abroad. His recent works included songs in 'Aal Izz Well' and '3 Idiots'. Off late he was also shuttling between India and US after teaming up with Kylie Minogue. “Sonu has been advised complete bed rest for the next few days for treatment of low blood pressure, fatigue and minor slip disc. He is also suffering from tennis elbow in both his arms and is currently undergoing treatment for that as well,” said the doctors in his charge.