The field of consumer behavior is the study of individuals, groups or organizations and the processes they use to select, secure, use and dispose of product, services, experiences, or ideas to satisfy needs and impacts that these processes have on the consumer and society. And understanding the consumer behavior is the prime and toughest task in front of every marketer. There are a lot of factors, which consumer buyer behavior. This study aimed at to understand the influence of celebrity endorsee on consumer buying behavior and marketing. Marketers pay millions of dollars to celebrity endorsee hoping that the stars will bring their magic to brand they endorse and make them more appealing and successful. But all celebrity glitter is not gold. Celebrity sources may enhance attitude change for a variety of reasons. They may attract more attention to the advertisement than would non-celebrities or in many cases, they may be viewed as more credible than non-celebrities. Third, consumers may identify with or desire to emulate the celebrity. Finally, consumer may associate known characteristics of the celebrity with attributes of the product that coincide with their own needs or desire. The effectiveness of using a celebrity to endorse a firm's product can generally be improved by matching the image of the celebrity with the personality of the product and the actual or desired serf concept of the target market. What therefore seems relevant by the study is that, yes, definitely celebrity endorsee consumer buying behavior and brand building but while using celebrity endorsee, marketer has to take care of all the aspect that whether the brought personality and image of celebrity matches or not, whether celebrity endorsee has deep penetration among the masses or not, whether he is considered as credible source or not etc.