Adam Levine apologizes for the 'non-professional' concert in Chile

' Maroon 5 'Leader Adam Levine has presented an apology for the mediocre performance of the band in Chile . Levine and 'Maroon 5' were heavily criticized for their gig during the country's ViƱa del Mar Festival on Thursday. Chile an fans of the band took to Twitter to express his frustration with the pop group.

A video also went viral and shows Levine leaving the stage and complaining to the organizers: That was a television show. It was not a concert.

The 40-year-old singer turned to his Instagram story on Friday to apologize to fans, saying that sound problems made it difficult for them to perform at the concert.

To be totally frank, there were some things that stopped me soundly last night, and I let them affect me. It affected how I was behaving on stage, which is not professional and I apologize for that.

I struggled a lot and sometimes it's really hard for me to mask the fight. That's why I let them down and I apologize ... Last night was not the best and, therefore, all I can say is that I am very sorry, Levine said.