Celebrity endorsement is a practice in marketing communication whereby popular personalities are employed to promote sales of goods and services, increase brands’ visibility and contribute to the bottom-line. This study, premised on Source Credibility Model was carried out to ascertain whether celebrity endorsement of products/services influence consumer patronage, using Nigeria’s second largest telecom company – Globacom Limited’s services among the students of Ajayi Crowther University, Oyo, Nigeria, as a case study. The study adopted survey research method, using a structured questionnaire as the instrument of research. Of the total number of Two Thousand, Seven Hundred and Eighty-Eight (2788) undergraduates; and using Stratified and Purposive Sampling, One Hundred and Eight (108) respondents were sampled, with One Hundred and Two (102) copies of questionnaire completed and returned. Of the 102 returned, two respondents stated they were not Globacom subscribers, leaving 100 as the final subjects of study. Data generated were analysed with the aid of quantitative statistical tool – Statistical Package for Social Sciences (SPSS), to reveal that, celebrity endorsement does not necessarily translate to service patronage or increase in sales. Fifty-six (56) representing (56%) of the respondents did not believe that endorsement of Globacom products by the celebrities influence their patronage. Also, eighty-six (86) respondents representing (86%) disagreed that celebrity endorsement confers credibility on the endorsed product/service. However, 70 respondents (70%) did not see celebrity endorsement of products/services as a form of deceptive advertising. This study concludes that quality of a product rather than the celebrity endorsement of it, appears to matter to consumers. The study recommends that whilst the use of celebrity endorsement should not be discountenanced (finding did not suggest it is deceptive), Globacom in particular and other organisations with consumer products should focus more on product quality and branding as ways of attracting consumer patronage and boost sales.