The gossip blogger, whose real name is Mario Lavandeira Jr, and Gaga were filming a cooking demonstration in Sydney, Australia when they fell out, reported Contactmusic.
"Actually, all the drama went down in Australia in the summer of 2011 when gaga became a surprisingly functioning drunk woman", said Hilton.
Gaga, 28, became upset over a question about her song 'Judas' and another question about her boyfriend in an interview with Hiltom, 36.
"She stormed off the set and stopped the interview", Hilton said.