Gangnam Style by Psy was hugely successful on both Youtube and iTunes. However, it peaked at number 2 on the Billboard Hot 100. The song's weakness was in radio play. Spins on radio were heavily weighted in the previous Billboard formula.
The song had 500 million views on YouTube and 1.6 million downloads. Yet it was blocked from the number 1 spot due solely to insufficient radio play. Many people blame "corporate radio" for keeping the song out of the top spot on the Hot 100. Plugging the numbers into the new formula shows that Gangnam Style would have spent two weeks at number 1.