Fat Night is starting 2019 with a monumental occasion: its first show in Pittsburgh. Fans of Vulpeck’s instrumental funk, or Ripe’s modern yet retro groovy music will flip over Fat Night’s soulful sound, like the silky vocals and breezy drumline heard in their latest single, “Honest Man.” The funk/soul band’s Toasty Tour is joined at Spirit by two local acts, hip-hop artist Isaiah Small and rock group Lofi Delphi.