“…Source credibility model includes two sub dimensions that are expertise and trustworthiness (De Los Salmones, Dominguez & Herrero, 2013;Dholakia & Stemthal, 1977;Goldsmith, Lafferty & Newell, 2000;Hovland, Irving & Harold, 1953;Kelman & Hovland, 1953;Ohanian, 1991;Ratneshwar & Chaiken, 1991;Solomon, 1996). Nevertheless, the source attractiveness model includes four sub dimensions are endorser's familiarity, likability, similarity and attractiveness to the respondent (e.g., McCracken, 1989;McGuire, 1985;Ohanian, 1990). Further, both source credibility model and the attractiveness are used by Ohanian (1990) to define three sub dimensions (attractiveness, expertise and trustworthiness) of celebrity endorsement.…”