For 10 points -- name this group that named almost all of its albums with the group name and a number.
As the title of their latest album suggests, they've been around for thirty years. Since 1967, they've recorded 20 singles and 12 albums that went top 10, five of which have hit #1, not bad for a group that was originally named for a city "transit authority." For 10 points -- name this group that named almost all of its albums with the group name and a number.
As the title of their latest album suggests, they've been around for thirty years.
{Chicago }[the rock group]