The night began with The Star-Spangled Banner and a man in a black Morphsuit. The anthem, sung by concertgoer Kayla M. Salmon, was the highlight of an impromptu talent show hosted by Coast Modern, Tuesday night’s headliner in The Sinclair. This goofy, no-stakes “talent show” was the perfect icebreaker that seemed to forewarn the audience, “Don’t take anything you are about to see or hear too seriously.” And there’s nothing serious about Coast Modern. From Los Angeles, Coast Modern is an indie pop band that sounds like they are from Los Angeles. Their music is an amorphous mixture of mischievous energy and dog-day lethargy. To hear this contradiction, listen to a track from their eponymous debut album released last year. The band consists of lead singer Coleman Trapp and guitarist Luke Atlas - who, by the way, was presumably the man in black spandex.