Da hatte der Einreisebeamte wohl zuviel Phantasie

[Volare]

WM Entertainment had previously stated the reason was because of their large number of costumes and props for Oh My Girl's jacket album shoot, while a Korean airlines rep said the reason was because they did not have performance visas

Official Statement:

2. On December 9, Oh My Girl traveled to the United States for their album jacket photoshoot. And we had already told the interested parties that while we were in the U.S., Oh My Girl would open for the L.A. event 'Unforgettable 2015' which both celebrities and producers were attending.

We were thankful that this would be an opportunity for rookie girl group Oh My Girl to meet representatives, and we decided to take part in promotions. Since the event was not our own solo performance, there was no need to receive a performance visa

Sie waren als Vorgruppe gebucht und wollten unter VWP einreisen. Der Manager denkt, da es nicht ihr eigenes Konzert war, brauchen die Girls keine Visa. Ich kann mir nicht vorstellen, das das ohne Visa geht.