Photo-sharing app Instagram has removed millions of accounts believed to be posting spam, angering many legitimate users. People who lost a lot of followers criticised the action, dubbing it the "Instagram Rapture". Like its parent company Facebook, Instagram routinely removes accounts to limit spam and prevent users buying followers to appear more popular. Rapper Akon reportedly lost 56% of his followers in the cull. The big losers were Justin Bieber (minus 3,538,228 followers), and an online marketing specialist called Wellington Campos, which lost 3,284,304 followers overnight. One account, chiragchirag78, lost 99% of his followers - 3,660,460 - before he himself was deleted. Instagram's own account on the site lost 18,880,211 followers overnight.