Whether it be the unnaturally warm February weather or the surprisingly (or should I say unsurprisingly) sold out show for a relatively new and developing band, everyone in the jam-packed Mercy Lounge sensed that something big was happening. Chatter was made up of conversation on who is who in the Nashville music scene and the next show people would be attending. Not lost in the conversations was an overwhelming sense of confidence that Kaleo was about to blow up, summed up by a Kentucky native to the right of me who said it was worth the drive and she didn’t think she would see the quartet in such a small, intimate venue ever again. With such a buzz preceding them, the band definitely delivered. Starting with “No Good,” a song picked up for the new HBO original series, Vinyl, the crowd was immediately moving to the blues/rock riffs and grungy vocals.