Kim Kardashian launched her latest innovation yesterday - special Kim-themed emojis called "Kimojis".
But within just hours of the app going live, Apple was inundated with fans trying to download the new app, nearly breaking the site.
Kardashian tweeted the news, apologising to Apple.
More from Spy:
• Biggest celebrity break ups of 2015
• Hospitality queen married one of Auckland's most eligible bachelors
According to TMZ, 9,000 people were downloading the app per second, causing the app store to start crashing.
The app offers users a variety of unique emojis, including voluptuous buttocks in a thong and a nude miniature of a pregnant Kim Kardashian.
The app costs $2.59 in New Zealand but has a rating of just 1.5 stars out of a possible 5.