Leaving the audience wanting more is the goal of every musician, unless you're a musician in violence-torn Mexico.

Two members of local group La Excelencia were murdered in a Guadalajara bar early Monday morning after refusing to play more songs past closing time, El Occidental of Mexico reported.

Jonathan Martinez, 22, and Gustavo Alejandro, 35, were pronounced dead outside the Vida Divina nightclub, gunned down by unidentified assailants with suspected ties to the country's notorious drug gangs.

A third victim, identified as bar patron Leslie Soltero, 26, was taken to a local hospital with a gunshot wound to her ankle.

When La Excelencia's performance came to an end around 4 a.m. local time, four reportedly intoxicated and aggressive audience members demanded the musicians continue playing. Sensing trouble, the group extended its set by two songs, but was eventually forced to pull the plug by the bar's owner, according to El Occidental.

Out of nowhere, one of the instigators threw a grenade at the stage. The explosion injured one person and had panicked customers running for the exits.

Martinez and Alejandro were among those who fled the bar, but they were met at the front door by a hail of bullets, presumably from the same four men who had ha****ed them earlier.

By the time police arrived at the scene, the killers had already escaped by car. No witnesses were able to identify the getaway vehicle.