Kamal Singh didn’t sound at all troubled on the phone yesterday. The Lounge Piranha frontman had just arrived in Mumbai with his band and was gearing up to play a gig at Hard Rock Cafe. The news of the (completely-unnecessary-anything-for-a-holiday-in-the-work-week) MNS violence in the city didn’t seem to affect the vocalist much. Hard Rock had confirmed that the gig would go on as scheduled, and the band was looking forward to putting on a memorable performance for the Mum