help me again please to translate these sentences,thank you ! the chicago amphitheater was packed,sweltering,rocking.onstage,Mick Jagger of the Rolling-Stones was singing 'Midnight Rambler',Critic Don Heckman was there when the song ended,"jagger"he said,grabs a half-gallon jug of water and runs alongthe front platform,sprinkling its contents over the first few rows of weltering listeners.They surge to follow him,eager to be touched by a few baptismal drops.