This case study analyzes the advertising effectiveness of Macy's holiday campaigns in 2011 and 2012, revealing that their 2011 'screamer' ad featuring Justin Bieber was significantly more positively received than the 2012 'what's in store' campaign, which suffered due to negative sentiment linked to Donald Trump. The 2011 campaign led to a 4.8% sales increase, while the 2012 campaign resulted in a 0.7% sales decline, with 36% of conversation expressing a desire to disengage from the brand due to the campaign's controversies. Key takeaways highlight the importance of celebrity alignment and public sentiment in advertising strategies.