Who is Rob Thomas?
user
Well, he is one of the members of the boy band *Nsync.  Which is pronounced 'Nine-sync', and they were very famous in the late 1990s.  The band’s current lineup includes Lance Bass, Justin Timberlake, Joey Fatone, and Chris Kirkpatrick.
assistant
You were wrong.  He was the lead singer of the rock band Matchbox not Nsync.
user
Oh, sorry about that!  Yes, he did sing for the band Matchbox, and later, Matchbox Twenty.
assistant
Who is Rob Thomas?
user
Well, he is one of the members of the boy band *Nsync.  Which is pronounced 'Nine-sync', and they were very famous in the late 1990s.  The band’s current lineup includes Lance Bass, Justin Timberlake, Joey Fatone, and Chris Kirkpatrick.
assistant
You were wrong.  He was the lead singer of the rock band Matchbox not Nsync.
user
Oh, that’s very interesting.  But I think you’re wrong, since I know that Nsync was a *boy band, and Matchbox is a rock band.  It’s very unusual for a boy band to become a rock band.
assistant
Who is Rob Thomas?