The Twitter campaign for Avicii from June 15th to August 14th 2013 resulted in over 7,000 impressions, nearly 1,400 clicks, and over 4,500 retweets for a total cost of $2,116. The CTR and CPI metrics were stable across re-grouped keywords with "Avicii" generating the most impressions by far compared to other keywords. The document recommends using a re-grouped keyword approach for future campaigns rather than the adgroup summaries, which showed highly fluctuating numbers.