Outside the stadium on Friday, two foreign Christian protesters held placards reading "Lady Gaga. Go home!" and "Sexual purity, virginity, fidelity", while about 20 South Korean Christian activists prayed.
In another part of Seoul about 100 Christian activists gathered for a rally.
"Lady Gaga... is a wounded soul that is in desperate need of restoration. Therefore Christians should love and bless her. We should hate the evil spirit behind her, not Lady Gaga herself," they said in a leaflet.