"Twenty years, what can I say? In life, one stands the test of time, but in music, thankfully, one reaps the rewards," says Wainwright.
"Come savour a very fine vintage of songs, those were some pretty good years."
Wainwright was last in New Zealand just a year ago, when he headlined the Auckland Arts Festival with a two-part show. First, he and the Auckland Philharmonia Orchestra put on an abridged version of his opera Prima Donna, and in the second half, he played a selection of songs from his popular Judy Garland tribute, Rufus Does Judy.
His new tour, proudly presented by TimeOut, will hit Auckland's Town Hall on March 2 and Wellington's Opera House on March 3.
Tickets go on sale for both shows at 9am, August 16, through Ticketmaster. VIP packages are available.