It has no current plans to become a public company.
You could follow her on twitter at ryrynewman and find out if she is going to be at any public events where you can meet her.
Once twitter started to share stocks in the New York stock exchange it officially became a public company.
Yes, the site Twitter is a social network
March 2006
On twitter anyone who is following you sees your updates on their page no matter what.
Ariana Grande has only one Twitter account known to public knowledge. Her Twitter account is @ArianaGrande.
No, it's very unlikely Twitter is going to cost money. What becomes a socializing site that costs money?
It's unlikely that they ever will.
Yes, you don't need an account to access Twitter. If the person's account is public, and you know his/her Twitter handle (username), the URL of the account's tweets will be https://twitter.com/________ and fill in the blank with the person's Twitter handle.
By going to the ustream website at ustream.tv You can login using your Twitter details.
By going to the Twitter mobile site on your phone.
Twitter was launched on July 15, 2006.