The 28-year-old singer said that artistes should really sing their records for their fans, reported Ace Showbiz.
"I don't think it's cool to lip-sync. I'm not judging if people do because it's everybody's own style of what they decided to be, the type of artist they will be.
"But I think if you pay money for a ticket to see a show the artist should have some pipes and sing their records for you," Gaga said.
The 'Poker Face' hitmaker also talked about her 'artRAVE: The ARTPOP Ball' tour which she kicked off earlier this month to support her latest album ARTPOP.
"Every day I have to do a totally different thing with my body than I used to, to keep it really healthy, but it feels really good," she added.