MyBB Community Forums

I have a text box for different groups on my forum. I can already personalize it to show their username, but now I need to show their group name. I tried the following, which shows the group number:

{$mybb->user['usergroup']}

What do I need to change 'usergroup' to so that the group name will show instead?

Should be able to use

$mybb->usergroup['title']

Thanks, Matt, I knew it had to be something simple but couldn't manage to find it.