It looks like the cast of 'Jersey Shore' will have to hold off on packing for their upcoming season in Italy. Their overseas trip has been postponed for at least a month due to contract negotiations and production obstacles.

According to RadarOnline.com, the group was supposed to leave for Italy on April 18, but the trip has been pushed back to May because some of the cast members have yet to sign new contracts.

"Several of the housemates haven't signed their contracts and until they do, the cast can't go to Italy," a production insider told Radar.

It's rumored that Nicole "Snooki" Polizzi, Jenni "JWoww" Farley, Mike "The Situation" Sorrentino and Paul "Pauly D" Delvecchio have refused to film for the hit MTV show until they get more money.