During ARR Unplugged concert, when Sadhna Sargam started to sing 'Naina Neer Baha' and Hariharan did a bit of alaap twice.. the smilie at Rahman's face at that time was just priceless!! Oh and Hariharan sir does a great task of getting crowd involved the way he starts 'Aye Hairathe' (with sargam) I recall he did that at Delhi concert last year as well. Overall concert was amazing; Rahman was very cheerful & enthusiastic throughout :D
