YouTube’s “de-spamming” initiative aims to remove unintended views from videos. The initiative has removed millions of views from videos, and large channels like Sony, Universal and RCA have been among the most affected. Together, these channels have lost upwards of 2 billion views since the Google-owned video site began its de-spamming efforts in December 2012.

Individual artists have also come under fire, as the official YouTube channel of South Korean rapper Psy lost nearly 12 million views on January 31, 2013, according to analytics provider SocialBlade.

“Lady Gaga also lost over 176 million views in January, which many are theorizing could be due in part to YouTube ‘cleaning up’ channels and removing views bought or gained inorganically,” reports NMR. “However, a YouTube spokesperson gave Billboard Magazine a less sensational story, explaining that views were being removed to adjust for unintentional views and pop-under videos.”