Snowbirds
I've seen the Snowbirds fly several times, mostly at Oshkosh where they were warmly received. They're very good at what they do and have an enjoyable act, partly because they use so many planes. I enjoyed their act better than the Thunderbirds during the T-38 days, but the F-16 act is damned impressive today.
They fly a Canadian built trainer called the CT-114 Tutor, a single engine jet trainer. I've heard the Tutor may be phased out of service (or already has been phased out) but that might not affect the Snowbirds any time soon.