Reality TV star Kim Kardashian and her rapper-husband Kanye West have postponed their daughter North West's first birthday bash until next weekend so that their families can fly back to Los Angeles for it.

The couple's little girl North will turn one Sunday, but they have decided to wait until next weekend for the event, reports contactmusic.com.

"They are throwing her a big party next weekend and Kourtney (Kardashian), Khloe Kardashian and kids coming home for it,` a source told E! News.