The Cosmo-Convention is a Fairy Convention that was hosted in Cosmo Con by Cosmo. It was held in Timmy's bathroom. This was a good thing as a person had to knock before entering alerting the fairies. After the fairies were alerted, they would poof it out. When the person leaves, it returns. The entertainment was originally going to be pop diva, Britney Britney, but instead was unwittingly provided by Mr. Crocker.