Lady gaga is an American singer who has won 5 Grammy Awards. In the middle of 2012, she was requested to have concert in Jakarta with the contract value of tens billion. The concert was protested by a number of groups. The promoter had approached the pressure groups and negotiated the dressing. However, Lady Gaga's management canceled the concert for security consideration. The objectives of the study are: (1) to explore consumer's attitude to the protest for the cancelation of Lady Gaga's concert; and (2) using classical conditioning and expectancy-value theory, to explain consumers' attitude to the protest. The study used focus group to collect data. The collected data was then transcribed and analyzed by content analysis. The results show that informant's opinions can be classified into two groups: agreement and disagreement with the protest for the cancelation of Lady Gaga's concert. Informants either agree or disagree for some reasons. Classical conditioning theory can explain either consumer's attitude. The difference is the object of consumers' attitude who agreed was Lady Gaga herself, while the object of disagreement was the pressure group that sponsored the protest. The attitude of the disagreement can also be explained by expectancy-value theory.