For me it’s Glass Animals. When I first listened to Heat Waves and other songs on Spotify they never struck me as masterpieces, but holy shit are they a VIBE when performed live… I was jumping like a child in their concert!
Isabel Larosa was also a pleasant surprise. I only knew her songs as those overdone in reels but damn is that girl (and her brother) born for the stage! She has insane energy and holds her audience even without a supporting live band.
Art Brut. Their catalog just isn’t a draw from me, but I saw them open for another hand and they’re immaculate performers, they honestly blew the headliners away with their amazing energy and perfect read of the audience.