Let's hope that fans won't feel "Unwell," and that it'll be "Smooth" sailing on the first-ever Matchbox Twenty fan cruise, which leaves Miami this Friday on the Carnival Imagination, with the Goo Goo Dolls along for the ride.  But Matchbox Twenty lead singer Rob Thomas is still a bit confused as to why, exactly, the band decided to set sail with thousands of their devoted fans for a three-day cruise."I was drinking and someone talked me into it.  That's the only thing that I can explain.  I don't know how that happened," laughs Rob to ABC News Radio.  After all, it's not li