Who said you need to be able to sing live to make it in music?
It used to be a requirement for singers to sound better in concert than their studio albums, but these days, plenty of performers ride on a prayer and a backing track when they perform. And as Beyonce demonstrated during her inauguration performance, lip-syncing isn't even reserved for the tone deaf acts that are topping the charts! Check out our roundup of the 10 most notorious lip-syncers.
Which pop act were the first infamous lip-syncers? Find out after the jump!